Advanced Statistics Sites

[Franchise 60]

Forgive me if this has been adressed in another thread, I looked but didn't come up with anything.

Since I stumbled upon the wonderful world of SE a couple months ago I feel like I have learned a lot of new ideas/ways of looking at things than I did before. A big influence on that has been learning/seeing newer less "mainstream" statistics for Baseball/Football/Basketball.

I felt a little lost at first but I think I'm picking it up pretty well, and learn enjoying the new ways of looking at things etc.

So I was wondering if you guys could list your best sites/resources for statistics/analysis and all that. I know I would be happy to find new sites to waste my day on, and I'm sure some others would to.

Blogs are cool to if you think they fit (ie MT2R's CFB blog)

Thanks in advance.