Mandel is the co-founder and site designer for CoolHotNot, a social website of consumer electronics reviews from trusted technology experts such as John C. Dvorak of MarketWatch and tech blogger Chris Pirillo. CoolHotNot will be a membership web site that fully exploits the power of social media to facilitate the sharing of real-life, personal product experience in a creative new way that lets members define the recommendations they get by category or keyword, according to the friends and experts they choose.