This brings together two things I love - music, and specifically LIVE music, and homegrown web apps. Developed using RoR, tourfilter spiders the sites of music venues big and small for 3 dozen cities across the globe. You enter the bands you just can’t miss (which I did last night - damn you, Battles, why must you sell out at Great Scott?!) and you can see when they’re playing in your city. The site will even email you ahead of time.
Now if I can only figure out how to stay awake past 12:00 on a school night. Damn, I’m old…