Huge repositories of data collected by Internet companies are not accessible to scientists, leading some to complain that studies based on these data can’t be peer-reviewed.

As it has grown increasingly difficult to find a steady full-time job with benefits, more men are reaching for a chance at the American dream in female-dominated occupations.

Asana, created by a Facebook co-founder, Dustin Moskovitz, is a shared to-do list for a company looking to make managing tasks at work a little easier.

Mr. Gibb was the second member of this brother act, whose sound helped define the disco era, to die.

The government blocked access to the social networking service on Sunday, after holding Twitter responsible for promoting a blasphemous cartoon contest, officials said.

Research shows that more than half of office workers are dissatisfied with the level of “speech privacy” in their offices, and managers are hearing their complaints.

On Saturday, Mark Zuckerberg, the founder of Facebook, announced that he had married his long-time girlfriend, Priscilla Chan. The announcement was made, of course, on Facebook.

Chen Guangcheng, the blind lawyer whose escape from house arrest jolted U.S.-China relations, left China on a flight bound for Newark, N.J., with his wife and children on Saturday.

In the world of social networks, Facebook and Twitter can be compared to the old children's story "The Tortoise and the Hare." But this race is not judged by speed but by the long-term relationship with users and their privacy.

At the end of his career, Dr. Robert L. Spitzer has reached a painful conclusion: “I believe,” he wrote in a letter, “I owe the gay community an apology.”

What has happened after 2,400 technology, Internet and telecom I.P.O.’s.

In stark comparison to Facebook, Twitter said Thursday that it will begin imple...