Bash.org reader -- read Bash.org and can filter, search for, and vote for quotes. Uses AJAX, has configurability (Hide crappy quotes? Hide already displayed quotes? What is your favorite quote?) and has a web-based interface.
IMPORTANT: As of 1 September 2011, I recommend that you download the fork of Rash here: https://github.com/paxed/rash-qdb-fork . Rash is a clone of the website bash.org. It was a project of mine in high school, and is no longer maintained.