Is there a sports team that you follow closely? Do you find yourself going through the sports page in an attempt to zoom in one that one story about your favorite team and ignoring the rest of the newspaper?
Then maybe you should start a blog about your team. You have opinions about decisions that the coaches, managers, and players are making. You have an idea of what they should and should not do. Let us know about it.
You celebrate their victories. You are saddend by their defeats. Share these moments. Talk about the trades, the recruiting policies, the leage violations, the news controversies. Now you don't have to hunt down people to pester about the game over the weekend. Just blog about it (your co-workers who don't follow sports will thank you).