MSDN has some great stuff on it. The API documentation is helpful, the knowledge and transparency of the scads of bloggers there is simply incredible (and EXTREMELY helpful when searching for answers), and there’s just some Plain Cool Stuff.
Until they move it.
This seems to be an ongoing problem at MSDN. Get some good content up, then six or eight months later move stuff around so all the links don’t friggin’ work. Case in point, the following spot from MSBuild’s front page:
Of the four links circled in red, three get Page Not Found errors.
Not overly helpful.