Pass data between two forms

Hi,

How do I pass data between two open forms?

I have form1 that contains all sorts of definitions for Stocks, Bonds etc located in a DB. Through form1, I can open the form2, which is a form for searching the Stocks. I want to pass the search result from the 2nd form to the 1st form, so it could load the definitions for it. How do I do that?

Thanks,
Udi