If you don't want to roll your own and don't care if its open source, I've used clicky.com for years. Simple, and shows everything I need. As others have said

If you don't want to roll your own and don't care if its open source, I've used clicky.com for years. Simple, and shows everything I need. As others have said, it's a crowded market. Still cool though that people are launching these projects.