It seems that in Sharepoint 2010 it is common for the Site Web Analytics reports and Site Collection Web Analytics reports to not show data.  Many Folks over at the MS TechNet Forum seemed to think that it was an issue with Sharepoint, but it is really not.  The real issue is that the Jobs that are supposed to collect the data for the Health Analyzer are disabled by default.  So you must go in and enable them.

In the Admin Panel: http://mysharepointserver/_admin/ServiceJobDefinitions.aspx enable the following jobs (their default times are fine, so you can leave those as is)

Diagnostic Data Provider: Event Log
Diagnostic Data Provider: Performance Counters – Database Servers
Diagnostic Data Provider: Performance Counters – Web Front Ends
Microsoft SharePoint Foundation Usage Data Import
Microsoft SharePoint Foundation Usage Data Processing
There are other services that are disabled (Some SQL jobs and some trace job) which you can enable if you want, but for me, these were enough for what I needed

 

 

 

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