Dick Costolo

A Jewish student group has announced it was taking further legal action against Twitter over the global networking site's failure to respond to a French court order to hand over data to help identify the authors of anti-Semitic tweets.

Twitter co-founder Jack Dorsey said Tuesday he has turned over most operations at the high-flying company as he devotes more time to his other venture, mobile payments firm Square.

Twitter is not readying a public offering nor is it seeking to be sold to another group, chief executive Dick Costolo said Wednesday.

Twitter chief Dick Costolo said Friday that the Internet Age one-to-many text messaging service is turning out to be a boon for good old television.

Twitter chief Dick Costolo met on Friday with US Secretary of State Hillary Clinton as Internet age technologies play growing roles in world affairs.

Twitter announced it has finished rolling out overhauled pages crafted to boost the appeal of the message-sharing service to users around the world.

Twitter announced it has finished rolling out overhauled pages crafted to boost the appeal of the message-sharing service to users around the world.

(Reuters) - In just five years , Twitter has evolved from a 140-character punch line into a universal, all-purpose newswire, free and open to almost anyone, throbbing with the pulse of the planet in real time. It's where Newt Gingrich announced his presidential run, Prince William announced his engagement, and where the killing of Osama bin Laden was old news by the time President Obama announced it on television. If you're watching or taking part in a political protest - be it in Tahrir Square or downtown Manhattan - Twitter is where you have to be: faster than CNN, more credible than Fox News, and uniquely able to invite you to both follow the news and report it too.

SAN FRANCISCO (Reuters) - A blackout scheduled for Wednesday to protest against proposed legislation on online piracy has failed to get the support of the biggest Internet players.

SAN FRANCISCO (Reuters) - A blackout scheduled for Wednesday to protest against proposed legislation on online piracy has failed to get the support of the biggest Internet players.

SAN FRANCISCO (Reuters) - A blackout scheduled for Wednesday to protest against proposed legislation on online piracy has failed to get the support of the biggest Internet players.

SAN FRANCISCO (Reuters) - Kevin Ryan, chief executive of online retailer Gilt Groupe, is keeping close tabs on congressional legislation that might enable him to have more shareholders in his young company.

SAN FRANCISCO (Reuters) - Kevin Ryan, chief executive of online retailer Gilt Groupe, is keeping close tabs on congressional legislation that might enable him to have more shareholders in his young company.

DUBAI (Reuters) - Prince Alwaleed bin Talal, the Saudi billionaire and an investor in some of the world's top companies, has bought a stake in microblogging site Twitter for $300 million, gaining another foothold in the global media industry.

DUBAI (Reuters) - Prince Alwaleed bin Talal, the Saudi billionaire and an investor in some of the world's top companies, has bought a stake in microblogging site Twitter for $300 million, gaining another foothold in the global media industry.

DUBAI (Reuters) - Prince Alwaleed bin Talal, the Saudi billionaire and an investor in some of the world's top companies, has bought a stake in microblogging site Twitter for $300 million, gaining another foothold in the global media industry.

DUBAI (Reuters) - Saudi billionaire Prince Alwaleed bin Talal, an investor in some of the world's top companies, has bought a stake in Twitter for $300 million, gaining another foothold in the global media industry.

DUBAI (Reuters) - Saudi billionaire Prince Alwaleed bin Talal, an investor in some of the world's top companies, has bought a stake in Twitter for $300 million, gaining another foothold in the global media industry.

SAN FRANCISCO (Reuters) Twitter revamped its website on Thursday to make the microblogging service easier to use and to help companies better showcase their brands.

SAN FRANCISCO (Reuters) Twitter revamped its website on Thursday to make the microblogging service easier to use and to help companies better showcase their brands.