| http://www.w3.org/ns/prov#value | - it is not perfect and there are some domains (especially in Asia and other non-English speaking countries) that do not have a way to contact them. (E-mails sent previously have bounced, etc.) I do not know how effective it really is, but the amount of spam I get today is much less than two years ago (August 2005: 368, August 2007: 72).Spammers use botnets to distribute their garbage, so it is likely t
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