I’m a big advocate for pit bulls and other breeds of dogs that are often the victims of bad stereotypes.  Here’s some pro pit sites I like

Pit bull rescue central: information about the breed and a network for adoptions/fosters

Pit bull forum: online community supporting responsible ownership of bully breeds

Bad Rap: information and cool store with pro pit merchandise

Houston Pit Bulls and Bully Breeds: a local club designed to get responsible dog owners together for dog walks and advocacy

...you can only do math for so many hours.

xkcd: a standby science/math comic

Brown Sharpie: a delightfully punny pure math comic

Nedroid: for those that enjoy the awkward or bizarre

Samgine: logic puzzles and flash games

comic from Brown Sharpie