MC Hammer was among tech entrepreneurs announcing new products at the Web 2.0 Summit in San Francisco. The rapper's product is a new search engine called WireDoo. Sadly, it is not an index of things you can't touch, but instead a search engine focusing on relational items. Searching for the word "car" will bring up topics related to a car, like insurance, pricing and safety ratings. WireDoo is still being built and not available to the public yet.