I would like a list of websites that I could use as a resource to
assist in business modelling, spreadhsheet analysis and statistical
analysis.  For example, I would like to be able to access websites in
which I could interact with a user forum to read others ideas about
modelling, and especially where I could ask others questions about
modelling.  I'm talking about financial modelling for the most part,
with aspects of linear programming, regression analysis and other
business modelling methods.  Also, are there any national
organizations for this type of business modelling?

Thanks,

Eric