Below are five of the newest startups according to Killer Startups for the period ending April 14, 2008. Check out previous Killer Startups posts. WhatYah - Social Media Sharing, Categorizing WhatYah, as in what yah watching, or listening to, is a social network cum media sharing site. It's relatively simple, you invite friends, make media lists, and share. Movies, shows and games each have their own respective categories. Under each section is a list of titles. Users can add these to their