Internet service providers aren't the only companies getting in on the copyright cop action; Microsoft recently began blocking Windows Live Messenger messages containing links to the Pirate Bay. If you try to send a Pirate Bay URL to a buddy, WLM will now slam on the brakes and tell you that piratebay.se has been "reported as unsafe."
To be sure, a segment of the files available on the site contain malware, but most Pirates report running into only a small number of infected files. And if safety was the primary concern, wouldn't the instant messaging service block links to other file sharing sites, as well? TorrentFreak, which broke the news, reports that "All of the other large BitTorrent sites remain unaffected, even though they offer content that’s identical to The Pirate Bay."
Don't try being smart and skirt the ban with Pidgin, Digsby or another chat client, either; TorrentFreak beat you to the punch and reports that Pirate Bay links sent over the WLM with those clients are still banished to the aether.