One idea I had for a site as a service to the WP community was a Google Custom search for plugins and better categorization than tags provide. At 6500 plugins, most of what I find is a waste. They need an advanced search by category, rating, etc. I'm sure they have bigger fish to fry, but anyone (hint, hint) could throw up a Google custom search with labels and filters to get current year, and keyword categories. I find that I need to do that myself to be sure I've found everything out there without looking through the many abandoned projects.