If you haven't heard of the Geek A Week project, then this is a good intro for you. If you have, you know why backing it for version 2.0 is worthwhile ;-)
You can view the project here. Even $5 helps and gets you something nifty -- and the payment system is super easy ;-)
Plus, well, geek support of geeks is always highly encouraged. If people like Grant Imahara, Jessica Mills and Michele Boyd took the time to help make the promo vid, then you know it's geel approved.
Here's a lovely video to explain.