Most of you have probably heard of Pandora, but for those that haven’t I’ll give you the rundown.

Pandora is an internet radio platform that lets you build stations around an artist, genre or specific song. Founder Tim Westergren and his team of musicians listen to music all day long and tag the songs they hear according to a million different categories. Tags like key tonality, prominence of vocalist, primary instrument, etc.

Similar to StumbleUpon, Pandora adds value by aggregating content around your interests. And just like StumbleUpon, it’s a great way to discover new content. For example:

Say want to build a station around “Is This Love” by Bob Marley. Not only will other Bob Marley songs play on your station, but other relatively unknown reggae artists will as well. They have similar characteristics to the song you already like, so there’s a great chance you’ll like their music too.

It’s a great site to help pass the day at work and discover new music.

Happy Stumbling!