Tag searching is up. The site wide tag search only works for tagged albums and photos for now--blogs are up next. Only resources that are public and published gets to be searchable. For internal or user specific tag searching, the "My Tags" application is your best bet (found in your toolbox). This app searches all your tagged resources and returns the results by resource type. A handy tool for quickly finding something. Expect some changes along as we integrate site wide content searching. For now, tag 'em.