Someone deleted a user group from my site. Does SharePoint keep any sort of log that will tell me who did it or when?

Hi there, Sharepoint does include Auditing captuing changes to security although its limited - you will need to activate it so that Sharepoint starts recording relevant information. For more information on how to set it up please look at this: http://office.microsoft.com/en-us/sharepointserver/HA101000051033.aspx There's also some interesting articles concerning formatting audited output here: http://admincompanion.mindsharp.com/BillBlog/Lists/Posts/Post.aspx?List=2d22afa2-592b-471a-9cd1-4e8de8a2abc0&ID=18 There's custom auditing tutorials from the MSDN mag if you would like to write your own: http://msdn.microsoft.com/en-us/magazine/cc794261.aspx But, if you really want more functionality than that you could go third party: Quest Site Administrator Security Auditor: http://www.quest.com/site-administrator-for-sharepoint/ Muhimbi Audit Tools: http://www.componentsource.com/products/muhimbi-sharepoint-audit-suite/summary.html Hope this helps Cheers Geoff