An illustration picture shows the Twitter logo reflected in the eye of a woman in Berlin, November 7, 2013. REUTERS/Fabrizio Bensch/Illustration/File Photo

A Yahoo logo is pictured in front of a building in Rolle, Switzerland December 12, 2012. REUTERS/Denis Balibouse/File Photo 

People work at the Facebook office in Berlin, Germany, August 29, 2016. REUTERS/Stefanie Loos 

A man walks in front of a mural at the Facebook office in Berlin, Germany, August 29, 2016. REUTERS/Stefanie Loos 

A picture shows the Facebook logo on a beach chair at the Facebook office in Berlin, Germany, August 29, 2016. REUTERS/Stefanie Loos 

A picture shows the Facebook logo at the Facebook office in Berlin, Germany, August 29, 2016. REUTERS/Stefanie Loos 

A picture shows the Facebook logo at the Facebook office in Berlin, Germany, August 29, 2016. REUTERS/Stefanie Loos 

Explainer showing how Facebook's solar-powered internet drone, Aquila, will provide internet access. 

The Google logo adorns the entrance of Google Germany headquarters in Hamburg, Germany July 11, 2016. Picture taken July 11, 2016. REUTERS/Morris Mac Matzen 

Officials who were conducting a tax probe at one of Google's Madrid offices leave the premises in Madrid, Spain, June 30, 2016. REUTERS/Andrea Comas TPX IMAGES OF THE DAY

Officials who were conducting a tax probe at one of Google's Madrid offices leave the premises in Madrid, Spain, June 30, 2016. REUTERS/Andrea Comas

Officials who were conducting a tax probe at one of Google's Madrid offices leave the premises in Madrid, Spain, June 30, 2016. REUTERS/Andrea Comas 

Google CEO Sundar Pichai escorts U.S. President Barack Obama to participate in a Shared Studios Portal virtual conversation with entrepreneurs at the Global Entrepreneurship Summit at Stanford University in Palo Alto, California, June 24, 2016. REUTERS/Kevin Lamarque

People stand near a sign of Alibaba Group at its campus in Hangzhou, Zhejiang Province, China, May 27, 2016. REUTERS/John Ruwitch 

People walk past a sign of Alibaba Group at its campus in Hangzhou, Zhejiang Province, China, May 27, 2016. REUTERS/John Ruwitch 

A sign of Alibaba Group is seen at CES (Consumer Electronics Show) Asia 2016 in Shanghai, China, May 12, 2016. REUTERS/Aly Song/File Photo 

An attendee walks past a sculpture during the Google I/O 2016 developers conference in Mountain View, California May 19, 2016. REUTERS/Stephen Lam 

Attendees rest on a bench during the Google I/O 2016 developers conference in Mountain View, California May 19, 2016. REUTERS/Stephen Lam 

A Google Project Loon internet balloon is seen at the Google I/O 2016 developers conference in Mountain View, California May 19, 2016. REUTERS/Stephen Lam 

Attendees stand in front of a sculpture during the Google I/O 2016 developers conference in Mountain View, California May 19, 2016. REUTERS/Stephen Lam 

Attendees play a game of foosball during the Google I/O 2016 developers conference in Mountain View, California May 19, 2016. REUTERS/Stephen Lam 

An attendee draws on an Android robot during the Google I/O 2016 developers conference in Mountain View, California May 19, 2016. REUTERS/Stephen Lam 

German Chancellor Angela Merkel wears Google Glass eyewear as she visits a booth of Nokia where students developed an interactive communication software to repair mobile communications equipment abroad during a Girls Day career event at the Chancellery in Berlin April 27, 2016. Girls Day seeks to attract female pupils to careers in IT, technological and natural science sectors of the German industry. REUTERS/Fabrizio Bensch TPX IMAGES OF THE DAY 

German Chancellor Angela Merkel wears Google Glass eyewear as she visits a booth of Nokia where students developed an interactive communication software to repair mobile communications equipment abroad during a Girls Day career event at the Chancellery in Berlin April 27, 2016. Girls Day seeks to attract female pupils to careers in IT, technological and natural science sectors of the German industry. REUTERS/Fabrizio Bensch 

An illustration picture shows the Twitter logo reflected in the eye of a woman in Berlin, November 7, 2013. REUTERS/Fabrizio Bensch/Illustration/File Photo GLOBAL BUSINESS WEEK AHEAD PACKAGE - SEARCH 'BUSINESS WEEK AHEAD APRIL 25' FOR ALL IMAGES 

A security guard keeps watch as he walks past a logo of Google at an exhibition stage during the 4th China (Shanghai) International Technology Fair 2016 in Shanghai, China, April 21, 2016. REUTERS/Aly Song 

People walk past logos of Google at an exhibition stage during the 4th China (Shanghai) International Technology Fair 2016 in Shanghai, China, April 21, 2016. REUTERS/Aly Song 

Facebook's logo is seen through a magnifier in front of a displayed PC motherboard, in this illustration taken April 11, 2016. REUTERS/Dado Ruvic/Illustration 

A blimp reading "Google must pay tax" is seen floating over the Tel Aviv skyline April 3, 2016. Israeli attorney Guy Ofir is the mastermind behind the blimp and told Reuters on Sunday that the airship will float until midnight some 200 meters from Google's offices with the intention of drawing public and media awareness to Google's tax issue. REUTERS/Baz Ratner 

A blimp reading "Google must pay tax" is seen floating over Tel Aviv April 3, 2016. Israeli attorney Guy Ofir is the mastermind behind the blimp and told Reuters on Sunday that the airship will float until midnight some 200 meters from Google's offices with the intention of drawing public and media awareness to Google's tax issue. REUTERS/Baz Ratner 

A blimp reading "Google must pay tax" is seen floating over the Tel Aviv skyline April 3, 2016. Israeli attorney Guy Ofir is the mastermind behind the blimp and told Reuters on Sunday that the airship will float until midnight some 200 meters from Google's offices with the intention of drawing public and media awareness to Google's tax issue. REUTERS/Baz Ratner TPX IMAGES OF THE DAY

A blimp reading "Kahlon, tax Google", in reference to Finance Minister Moshe Kahlon, is seen floating near the building hosting Google's offices in Tel Aviv in this April 3, 2016 file photo. The other side of the blimp bears the English slogan "Google must pay tax". REUTERS/Baz Ratner/Files 

Facebook founder and CEO Mark Zuckerberg looks at Founder and Executive Chairman of Alibaba Group Jack Ma as Ma gestures during the China Development Forum in Beijing, China, March 19, 2016. REUTERS/Shu Zhang TPX IMAGES OF THE DAY

The world’s top Go player Lee Sedol and Demis Hassabis, the CEO of DeepMind Technologies and developer of AlphaGO, arrive at an award ceremony for the Google DeepMind Challenge Match against Google's artificial intelligence program AlphaGo in Seoul, South Korea, March 15, 2016. REUTERS/Kim Hong-Ji 

Demis Hassabis, the CEO of DeepMind Technologies and developer of AlphaGO, receives a trophy from Hong Seok-hyun, chairman of the Korea Baduk(Go) Association during an award ceremony for the Google DeepMind Challenge Match against Google's artificial intelligence program AlphaGo in Seoul, South Korea, March 15, 2016. REUTERS/Kim Hong-Ji 

The world’s top Go player Lee Sedol and Demis Hassabis, the CEO of DeepMind Technologies and developer of AlphaGO, pose for photographs with the go board used for the Google DeepMind Challenge Match against Google's artificial intelligence program AlphaGo, during an award ceremony in Seoul, South Korea, March 15, 2016. REUTERS/Kim Hong-Ji 

The world’s top Go player Lee Sedol and Demis Hassabis, the CEO of DeepMind Technologies and developer of AlphaGO, pose for photographs with the go board used for the Google DeepMind Challenge Match against Google's artificial intelligence program AlphaGo, during an award ceremony in Seoul, South Korea, March 15, 2016. REUTERS/Kim Hong-Ji 

Demis Hassabis, the CEO of DeepMind Technologies and developer of AlphaGO, and David Silver (R), team lead of DeepMind, a Google subsidiary and developer of the AI, attend an award ceremony for the Google DeepMind Challenge Match against Google's artificial intelligence program AlphaGo in Seoul, South Korea, March 15, 2016. REUTERS/Kim Hong-Ji 

The logo of French internet service provider and mobile phone operator Free is seen at the company headquarters in Paris, France, March 10, 2016. REUTERS/Charles Platiau

The logo of French internet service provider and mobile phone operator Free is seen at the company headquarters in Paris, France, March 10, 2016. REUTERS/Charles Platiau

French broadband Internet provider Iliad logo is seen in Paris, France, March 10, 2016. REUTERS/Charles Platiau

The logo of French internet service provider and mobile phone operator Free is seen at the company headquarters in Paris, France, March 10, 2016. REUTERS/Charles Platiau

French broadband Internet provider Iliad Chief Executive Officer Maxime Lombardini (L) and Chief Financial Officer Thomas Reynaud (R) attend the company's 2015 annual results presentation in Paris, France, March 10, 2016. REUTERS/Charles Platiau

French broadband Internet provider Iliad Chief Financial Officer Thomas Reynaud attends the company's 2015 annual results presentation in Paris, France, March 10, 2016. REUTERS/Charles Platiau

French broadband Internet provider Iliad Chief Executive Officer Maxime Lombardini attends the company's 2015 annual results presentation in Paris, France, March 10, 2016. REUTERS/Charles Platiau

French broadband Internet provider Iliad Chief Financial Officer Thomas Reynaud attends the company's 2015 annual results presentation in Paris, France, March 10, 2016. REUTERS/Charles Platiau

French broadband Internet provider Iliad Chief Executive Officer Maxime Lombardini attends the company's 2015 annual results presentation in Paris, France, March 10, 2016. REUTERS/Charles Platiau

French broadband Internet provider Iliad Chief Executive Officer Maxime Lombardini attends the company's 2015 annual results presentation in Paris, France, March 10, 2016. REUTERS/Charles Platiau

Senior Facebook executive Diego Dzodan, who was recently released from a Brazilian jail due to a disputed court order demanding data from the company's WhatsApp messaging service for a confidential drug-trafficking investigation, listens to a question from a moderator at the Massachusetts Institute of Technology (MIT) in Cambridge, Massachusetts March 5, 2016. REUTERS/Mary Schwalm TPX IMAGES OF THE DAY

Facebook SMB regional director EMEA, Cairan Quilty, speaks at the British chambers of Commerce annual conference in London Britain, March 3, 2016. REUTERS/Peter Nicholls 

Facebook SMB regional director EMEA, Cairan Quilty, speaks at the British chambers of Commerce annual conference in London Britain, March 3, 2016. REUTERS/Peter Nicholls 

Facebook SMB regional director EMEA, Cairan Quilty, speaks at the British chambers of Commerce annual conference in London Britain, March 3, 2016. REUTERS/Peter Nicholls 

Daniel Rockberger, co-founder and chief operating officer of Israeli stratup Skyfi, sits next to a model of the company's development, the first self-correcting antenna that can turn mini-satellites into powerful transmitters covering the globe to provide worldwide internet access, in Rosh Ha'ayin, near Tel Aviv, Israel February 24, 2016. Picture taken February 24, 2016. REUTERS/Nir Elias 

Daniel Rockberger, co-founder and chief operating officer of Israeli stratup Skyfi, sits next to a model of the company's development, the first self-correcting antenna that can turn mini-satellites into powerful transmitters covering the globe to provide worldwide internet access, in Rosh Ha'ayin, near Tel Aviv, Israel February 24, 2016. Picture taken February 24, 2016. REUTERS/Nir Elias 

An anechoic chamber where Israeli startup Skyfi are testing their development, the first self-correcting antenna that can turn mini-satellites into powerful transmitters covering the globe to provide worldwide internet access, is seen in Rosh Ha'ayin, near Tel Aviv, Israel February 24, 2016. Picture taken February 24, 2016. REUTERS/Nir Elias 

An anechoic chamber where Israeli startup Skyfi are testing their development, the first self-correcting antenna that can turn mini-satellites into powerful transmitters covering the globe to provide worldwide internet access, is seen in Rosh Ha'ayin, near Tel Aviv, Israel February 24, 2016. Picture taken February 24, 2016. REUTERS/Nir Elias 

Co-founder of Israeli startup Skyfi, Raz Itzhaki Tamir, gestures during an interview with Reuters in an anechoic chamber where the company performs tests on their development, the first self-correcting antenna that can turn mini-satellites into powerful transmitters covering the globe to provide worldwide internet access, in Rosh Ha'ayin, near Tel Aviv, Israel February 24, 2016. Picture taken February 24, 2016. REUTERS/Nir Elias 

A man walks past a Yahoo logo during the Mobile World Congress in Barcelona, Spain February 24, 2016. REUTERS/Albert Gea 

A 3D-printed Twitter logo is seen in front of a computer screen on which an Islamic State flag is displayed, in this picture illustration taken in Zenica, Bosnia and Herzegovina, February 6, 2016. Twitter Inc has shut down more than 125,000 terrorism-related accounts since the middle of 2015, most of them linked to the Islamic State group, the company said in a blog post on Friday. REUTERS/Dado Ruvic TPX IMAGES OF THE DAY

Monika Bickert, Facebook's head of global policy management, is interviewed by Reuters in Washington February 2, 2016. U.S. gun traders are setting up new websites to arrange deals after Facebook Inc barred private gun sales on its platform. With gun rights and safety registering as a hot-button issue on the U.S. presidential campaign trail after several mass shootings last year, Facebook said on Friday it would no longer allow users to arrange private gun sales via the site. Picture taken February 2, 2016. REUTERS/Gary Cameron