Ramiro: we do have a video tutorial that tours the various features of the site and how to make use of them:

https://www.youtube.com/watch?v=cKbRsZjoIBU&amp;feature=player_embedded

It's not complete, though (it doesn't cover advanced searches), and nor do we have a written guide to all the different ways you can use the site. This is a priority of mine, and something we'll be expanding in the near future. If you'd like to help out, or offer any suggestions, feel free to email me at eric@sunlightfoundation.com.