eventful.com is like a mashup of craigslist, myspace, yahoogroups, your newspaper but it also allows you to submit the (PERSON BAND PLAY WHATEVER) thing you want to come to your town. If enough people are voting for it then the promoter knows to bring it to you. Discover, share, and create grassroots political events. Get involved! Demand your favorite candidates come to your town. Never miss a show again! track when your favorite artists are coming to your city.

Bubble Ply http://www.bubbleply.com/  a free Israeli service that overlays images and text on a pre-existing video. It is a total mashup between anyone and everyone.