17. The method of claim 16 , further comprising applying the characterizing tag to the person of interest, wherein the characterizing tag comprises metadata and is based on a prior communication with the person of interest.
16. A method of social tagging comprising: selecting a person of interest to tag; recommending a number of recommended tags associated with the person of interest based in part on information collected from electronic communications; applying a characterizing tag to the person of interest, wherein the characterizing tag is based in part on at least one of a communication or an association with the person of interest; identifying other users that share a common characterizing tag; storing the characterizing tag and identification information associated with a tagging user that tagged the person of interest with the characterization tag in a tag store comprising a computer-readable storage medium; and, presenting characterization tag information including presenting other users that share common characterizing tags.