PropertyShark is a website that provides data for millions of properties in major US markets. The in-depth data is very useful for real estate agents to use. The data and listings provided by PropertyShark is something that all agents need to know how to use properly, the aggregated data such is pre-foreclosure, foreclosure listings, property reports, comparables and building photos is an everyday necessity for the real estate professional. Their presentation at the New York Real Estate Summit is something not to be missed.