If you are looking for feedback on your site and exposure to an audience of other developers, designers, and entrepreneurs then I'd highly suggest my own startu

If you are looking for feedback on your site and exposure to an audience of other developers, designers, and entrepreneurs then I'd highly suggest my own startup service, launchly (http://www.launchly.com http://www.launchly.com). Check it out! There is a free, basic launch plan that simply requires a bit of community involvement on your part.