Links

The first links:
http://mindstorms.lego.com/nxtlog/ProjectList.aspx: Lots of projects, with pictures, videos and building instructions (official);
http://mindstorms.lego.com/eng/Overview/default.aspx: Overview of the robot (official);
http://www.nxtprograms.com/: projects;
http://www.thenxtstep.blogspot.com/: information, news;
http://mindstorms.lego.com/news/: news (official).