Oakland Raiders' 2012 Sponsors: Fan's Look (Yahoo! Contributor Network)

In the NFL, corporate sponsors provide a large portion of team revenue, and I think they are key to a team's financial success. As a fan of the Oakland Raiders, I know sponsorship is important as the team needs revenue to deal with their stadium issues and hopefully be able to self-finance a needed new facility. The team struggles with revenue, the Raiders are ranked second-to-last on the Forbes valuation of NFL teams and are dead last when ranked by revenue.