http://blogs.technet.com/mapblog/archive/2009/05/04/beta-announcement-infrastructure-planning-and-design-guide-for-sharepoint-online.aspxSharePoint Online—Evaluating Software-plus-Services The Infrastructure Planning and Design team is working on a new guide: SharePoint Online—Evaluating Software-plus-Services. Get the beta by visiting the Connect Web site at: https://connect.microsoft.com/InvitationUse.aspx?ProgramID=1587&InvitationID=IRSS-MRP9-7QCT&SiteID=14en-USCommunityServer 2.1 SP1 (Build: 61025.2)