We received quite a bit of tips, after posting about the 150$ high altitude balloon project, from communities and teams who had done similar tasks. There is more to these projects than simply filling a balloon and attaching a camera, so in order to allow everyone their 7 seconds of well deserved fame, we’ve compiled a quick list of similar high altitude balloons. Catch it after the break.

Do note, these are in no order or rank.
RPI Electronics club, sent in their Imaging Balloon of Science. Supposedly built in under 30 hours and runs Linux.
Bang Goes the Theory had their own Space By Balloon program after being inspired by Joe Kittinger.
Brushing up on my Spanish, Meteotek08 is a dual high altitude balloon that reached a height of 30,000 meters.
Ensure II is a very impressive setup that actually recorded its flight with video cameras (video above).
NSTAR, or Nebraska Stratospheric Amateur Radio, have sent up several high altitude balloons within the past couple of months.
Last, but certainly not least is the Amateur Radio High Altitude Ballooning group who have been sending up balloons since 2001!
Thanks to everyone who commented and sent in a tip!