Last weekend, Foursquare held their annual global hackathon, where they challenged developers all over the world to create new apps using the Foursquare API. The hackathon lasted for 48 hours straight, over 6 continents. Over 500 developers hacked with Foursquare’s …

Stay up a little too late, and you might get tired.  Stay up way too late – think weeks of insomnia – and you may start to lose it.  But somewhere in between, creativity strikes a lot of people, and Facebook’s planning an overnight hackathon to take advantage of this fact.

Food, prizes, and time at the Googleplex are all good things.  So, if Mountain View isn’t inconveniently far away, keep the "Google Developer Hackathon: JavaScript APIs" in mind when you’re making plans for Friday, February 29th.