-a real estate aggregator to provide people with historical price trends on given property. Eliminate the information asymmetry between the real estate agent a

-a real estate aggregator to provide people with historical price trends on given property. Eliminate the information asymmetry between the real estate agent and the buyer. -public and uploadable data warehouse, a la Many Eyes and Swivel, but with better graphic capability, something along the lines of trendalyzer. Design it in a way that rewards contributors with points to build resident 'data experts' and to enable referencing and storing of different people's analysis. -web-based statistical software like SAS. allow sharing of programs through repository as well as collaborative editing.