Good news for all tagging junkies. The social software / (anti-)folksonomy theorists at Many-to-Many point to a few cool tag aware applications this week: – grouping and filtering of the link stream by various facets. See David Weinberger’s article. Highly recommended.

Co-Links – annotating text with links (a somehow inverted form of tagging. Tags are no longer applied to links, but links to tags). – tagging colors. Interesting thought / software / social experiment. Via Grassroots Crayolas.

CiteULike – for academics (tagging papers, filtering by interest groups). The (currently) commonly used tags are great:

Via CiteULike and Connotea: Linklogging and Tagging Go Academic.