Yesterday, we started the beta of our product on http://www.retrevo.com. After much debate, we decided to keep it by invitation-only for now. We will be looking for a good time and venue to launch the company, and then start an open beta. Not a shock to anyone engaged with a startup, lot of hard work and sweat went into taking the product from a concept stage to beta. Team worked relentlessly to make the product category complete (from types of products supported and content coverage perspective) and fix all those nasty bugs. Team is excited and is not ready to take a break yet. Everyone has a sense of urgency to accomplish more (yes, you will see over time what all we have cooking here). Best way to participate in the beta right now is to find someone who is already a Retrevo beta user, and ask him/her to invite you. If you can't find someone, it won't hurt to register to be invited on the home page. It might take some time but I promise that it will be worth the wait.