Folksonomic Discovery
“Gataga will display its folksonomic search results as an RSS feed (just as Technorati does), which is very useful: you can subscribe to stay updated. But there are big missing pieces in this application. For one thing, it doesn’t include 43 Things and Flickr, off the beaten track of social bookmarking spanning web content, but far and away my favorites for fun and utility as self-tagging folksonomies.“