1. The document discusses ReferenceBook, a proposed product that would automate and improve the reference checking process for recruiters and HR managers by providing an online platform. 2. It outlines some limitations of current reference checking methods and how ReferenceBook would address these through scalability, quantifiable costs, data analysis and archiving. 3. Market sizes are estimated for the US, Australia and India, with a goal of handling 500,000 reference checks annually by tapping 2.5% of the market in the first couple years.