Simplicity is the name of the game now-a-days. The new Evite alternative called Mobaganda takes that a step further. Without having to register, you can create an invite, email it to people and track their responses via RSS feed. The design is ugly (my personal opinion, I am sure), but the concept is cool. It is build on the Google Application Engine, in case you care about those kind of things.

I learned about it several weeks about on Twitter (@stirman is the person behind the launch). To keep tabs on cool things like this you can follow me at www.twitter.com/jenniferdavis.