If you want it to go more viral you can always go the usual route: integrate aggressively with facebook, twitter, and other social networks. Use "rewards" in te

If you want it to go more viral you can always go the usual route: integrate aggressively with facebook, twitter, and other social networks. Use "rewards" in terms of points or medals or achievements to encourage users to spend time on your site. Also think really carefully about what your target audience is, what value you want to give to people, and how you plan to (eventually?) make money. I agree that a startup product like yours has to grow big fast. So the important thing is the viral part, the rest is pretty much irrelevant (once you have a bazillion users it's easy to build something they want). Where should you go from here? Figure out a clever way to make something viral, then go do that. Feedback regarding the product? I don't see how it can ever generate passionate users. I can't imagine anybody saying "Moodstir is the GREATEST PRODUCT EVER, because...". Twitter was the first social network to do one-to-many broadcasting right. Facebook gets people laid. Linkedin is a social network for business purposes. People really love those products, and it's very clear in what way they bring value to the user. This too is something that you should probably think about.