I have a website, RPG-Campaign.com, for planning and running role playing games.  In particular it's a place to make your setting material available, schedule games, and keep track of your games. The site has a block in the menu titled "Games We Like" that is explicitly for linking to Indie games.

I'm looking for people to swap links with.  If you look the site over, and think that it's something that would be good for your customers, put a link on your site or forum to my site. Tell me about it, I'll look your game over, and I'll put a link to your site in my "Games We Like" block if I agree with you.

I can't guarantee you that you'll get tons of visitors because of this link. In fact, I can't guarantee that anybody will follow the link at all. But I figure more exposure for games never hurt, and if one of these links gets somebody to try a cool new game they never would have known about otherwise, it's a good thing for everybody.