Office 365 Lync Online Explainedhttp://blogs.technet.com/b/jocarpenter/archive/2011/06/20/office-365-lync-online-explained.aspxA nice overview of Lync Online via the IT Pro Portal http://www.itproportal.com/2011/06/14/lync-online-microsoft-office-365/en-GBTelligent Evolution Platform Developer Build (Build: 5.6.50428.7875)