Faced with user pushback after revising its site, YouTube announced on its blog it was restoring a feature that allows users to browse videos by categories and to easily see which videos within particular categories were most often viewed, discussed and rated by other users.

The Federal Trade Commission has dealt a blow to net neutrality advocates, who have been clamoring for new laws that would prohibit Internet access providers from discriminating against publishers by blocking access to particular Web sites or degrading service.

Teens who participate in Web 2.0 activities like social networking, authoring blogs or helping others build Web sites face a higher likelihood of online harassment than their less Internet-involved peers. That's according to a new report by the Pew Internet & American Life Project.

Mobile TV is gaining ground with consumers, but likely not as fast as media companies would prefer. A new study by mobile research firm Telephia, released two days before the debut of the Apple iPhone, reveals that 8.4 million people in the United States subscribed to mobile video services during the first quarter. While that figure marks a 155% increase from last year's 3.3 million, it represents just 3.6% of all mobile subscribers.

Some civil rights advocates are worried that a pending copyright lawsuit brought by major entertainment studios against operators of the peer-to-peer site www.torrentspy.com could eviscerate online privacy.

Michael Moore's new movie, "Sicko," opens in 40 theaters across the country today -- one week ahead of schedule -- thanks in part to YouTube. After a pirated copy surfaced on the video-sharing site last weekend, distributors decided to move up the release date.

Neither CEO Terry Semel's ouster this week nor rumors of a possible deal with MySpace are stopping Yahoo from going ahead with at least some expansion. Today, the company announced it had purchased college sports site Rivals.com.

In a concession to Google, Microsoft has agreed to modify its Vista operating system to make it easier for people to replace its own desktop search engine with Google's. But the move, coming as Google and Microsoft continue to trade barbs over which company poses more of a monopolistic threat, might not satisfy Google.

YouTube's well-publicized copyright woes aren't keeping the company from trying to expand. Today, YouTube bowed new sites for users in nine countries - - Brazil, Britain, France, Ireland, Italy, Japan, the Netherlands, Poland and Spain.

In an ominous development for online freedom of speech, an AT&T executive has said the company intends to wage war on piracy. While details remain scant, the Los Angeles Times reports that AT&T intends to work with Hollywood and the record industry to create technology "that would target the most frequent offenders."