Product Hunt is the place to discover your next favorite thing, now with badges, descriptions, reviews, and a bunch more.
Lucr lets startups reward their users which helps attract early adopters. Being rewarded makes customers visit sites they wouldn't normally use.
Passmarked is THE tool I've been looking for to check the quality of websites (mine & clients'). The open source list of tests makes it incredibly useful and flexible for integrating into the development workflow. It's only just been launched but there's already a tremendous amount of coverage that will only get better as more people contribute.