Although created in SL 7.x, much of the following still pertains to the current version.  Check it out and learn something new!

http://dynamics.microsoftelearning.com/catalog/default.aspx?view=catalog&filterView=basic&productFilter=Microsoft+Dynamics+SL+7.0&productFilterDisabledValue=&seriesFilter=def-0&seriesFilterDisabledValue=&collectionFilter=def-0&collectionFilterDisabledValue=&searchAction=filter&sortColumnId=&sortOrderAscDsc=&pageNumber