I have put together a large showcase of 40 different websites built on the Twitter Bootstrap framework. Some of the sites are only using the CSS resets, while others have included the full JS library. This will be a good place to start if you are looking for Bootstrap design inspiration.
Author: Jake Rocheleau
Jake is a creative designer, illustrator, and web developer. He frequently writes articles involving new-age design concepts and freelance management skills. You can find him in Google or follow his tweets @jakerocheleau