RickrollDB is a social voting app written in Ruby using the Merb framework.

Website users are invited to submit new URLs and vote them up or down. After an entry has passed a specific threshold the URL is included in an AdBlockPlus subscription filter list compatible with AdBlockPlus

The app was built specifically to power http://rickrolldb.com, which documents and blacklists Rick Astley “Never Gonna Give You Up” videos, but it should be trivial to adapt the app to any sort of social voting use.

Checkout the GPL’d code: svn checkout http://tramchase.com/svn/rickrolldb rickrolldb

• Author & rickrolldb.com maintainer: Jamie Wilkinson