I just found an great website with a live running demo of report examples with Analysis Services, SharePoint, PerformancePoint, Excel Services, Reporting Services and other Microsoft BI Technologies. This is Richard Lee’s website:
http://richardlees.com.au/sites/Demonstrations
From the site:
Site has a variety of data mining, OLAP and business intelligence tools on several real (census, web logs, Perfmon and libraries) and synthetic (foodmart) databases of over 100 Million records. The demonstrations are platformed on Microsoft SQL Server 2005 and Microsoft SharePoint Server, Microsoft PerformancePoint Server 2007 and Excel Services.
Well worth visiting and exploring all these online examples.