"Spammers and scam artists are abusing Microsoft's live.com and livefilestore.com properties to redirect visitors to sites that peddle fake pharmacy products, porn and Nigerian 419 scams." That's how WaPo security blogger Brian Krebs explains Microsoft's appearance on the list of Top 10 Worst Spam Service ISPs maintained by the non-profit Spamhaus Project. Krebs got a non-denial denial from Microsoft that overlooks the fact that many of the scams have been high-profile examples for months. As Krebs points out, even the directionless dweebs at Yahoo (I'm paraphrasing) fixed this problem on their own sites.