Web 2.0 List Of Web 2.0 Application Links     http://www.web20searchengine.com/web20/web-2.0-list.htm     tags: bookmark Social Bookmarking Tools (I): A General Review     http://www.dlib.org/dlib/april05/hammond/04hammond.html     tags: bookmark Home - frassle     http://frassle.rura.org/     tags: web blog bookmark aggregator