Bleacher Advisor is a sports venue review site and structured wiki. Users can add reviews of how great or bad venues were at different services. Users can also add photos they took at games or they can write a venue article.
Since Bleacher Advisor was founded in October of 2008 the site is still in construction and they are planning on launching the site around November 10th.
Bleacher Advisor is very similar to a Crunch Base or Comic Vine.