I saw it too. It was good, I thought. Kind of a high-tech spin on Saw or Seven. However, they were constantly spitting out complete bullshit whenever they talked about computers. The whole hook about the site that somehow can't be taken down is total BS. There are 100 different ways to get a server off the net in the time frame presented in the movie.
Also, real subtle they had the bad guy using XP and the good ones using some weird kind of Vista that said "VISTA" on the screen whenever it was in the background of a shot. Also the guy who was able to spy on them because they downloaded stuff, pure propaganda.
But as a movie it was great.