The new 100 most useful sites

In 2004, the internet was a different place: there was, for example, no YouTube, and most Britons online didn't have broadband. That's changed dramatically: now, more than 75% of users have broadband, and the arrival of Web 2.0 has brought sites where the interaction is as fast as if it were on your machine. So we've revisited the "cream of the crop" that we brought you two years ago. Some of the