Analytic Programs
 

Not sure where to put this but I have a question....

I have Google Analytics, Stat Press Reloaded, Blog Stats, and just installed SiteMeter.

Why are the numbers so vastly different. Stat Press and Blog Stats are very close and I suspect the difference is Blog Stats may be more real time and Stat Press is delayed a few minutes. Analytics tends to be lower than those two, but again it could be a time zone deal and it is not that far apart. But SiteMeter is WAY lower than the rest.

Any suggestions? Just looking for an explanation