Rick Santorum has lost control of his online identity, a predicament that stands as a chilling example of what it means to be at the mercy of the Google algorithm.

At cater2.me, sales of street food to office workers in San Francisco prove that the Internet hasn’t eliminated the middleman after all.

Advocates are pushing Apple, Microsoft and Wal-Mart to end indirect funding of anti-gay religious groups.

Social media has become a necessity in Mexico, with a mission far different from that of the Arab revolutions — here, it is deployed for local survival.

Neal Stephenson’s novel involves a multiplayer online game, a computer virus, Russian thugs and a Welsh terrorist.

Google’s business practices, which its rivals claim limit their opportunities, came under intense scrutiny at a Senate hearing.

Europe is struggling to balance the needs of the advertising industry against the privacy of Web users. Consumers’ rights groups are balking at a plan for self-regulation by advertisers.

The social media site’s new platform will allow its 750 million users to easily share their favorite music, movies and other forms of entertainment.

Why are there so many more men than women contributing to a “free encyclopedia that anyone can edit”?

With a Web full of stuff, discovery is a hard problem. Search engines were the first tools on the scene, but their rankings still have a hard time identifying relevance the same way a human user would. These days, social networks are the substitute for content discovery, and even the major search engines are using your social signals to determine what’s relevant for you. But the obvious problem with social search is that if your friends haven’t discovered it yet, it’s not on your radar.