One big, hairy feature that is inexplicably missing from Kuler is a good search function. Sure, I can search on keywords (which members often apply incorrectly). But I want much more. I want to search for all "4 or 5 star" themes that contain a certain shade (or its near cousin). Or I want all options containing two shades that are in the logo of the company I'm working with. This sort of functionality would actually make Kuler a serious tool, rather than simply a mildly-helpful color playground.