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LAN messaging and the home office - Macworld
http://news.google.com/news/url?sa=T&ct=us/0-0&fd=R&url=http://www.macworld.com/article/135598/2008/09/lanmessages.html&cid=1247446679&ei=evvRSLbCKpWG-QGahdzSBA&usg=AFQjCNHDefsihgTTQaXaYhv9sjZP9dli3w