Search centre in SharePoint collaboration sites has built in federated search result page that pull from live search. in cases when no federated search results are displayed, or a Location not found error message appears. this could be related to proxy...

Creating a new site collection usually requires a farm admin permission level since the tools to do so are available through the central admin or by using an stsadm command line. In some cases, you want to delegate the site creation to end users (without...