I came across a new Wiki service called MediaOnTwitter which is trying to build the “ultimate Twitter resource”. It is meant as a resource that lists media outlets, journalists, and bloggers from around the world.
You would use the service in two ways:
- Finding reporters, journalists, and bloggers on Twitter worth following
- Contacting them through Twitter to pitch stories and articles.
It will be interesting to see how the site plans on maintaining the integrity and quality of the content on their site, esspecailly with an open wiki interface.  Thanks to Guy kawasaki for tipping me off to this site!