As a follow up to my previous post here is a nice article that describes SharePoint editions in more detail. Very good research on SharePoint 2007 platform can be found in April 2007 edition of Directions on Microsoft.
I had a lot of trouble with Excel Services. I wanted my Excel file to refresh data from SQL database. However, the following error appeared constantly: Unable to retrieve external data for the following connections: Connection_Name The data sources may be unreachable, may not be responding, or may have denied…