I can most of my tomatoes.  However, last fall I did put some in the freezer.  My brother freezes all his tomatoes.

You can puree tomatoes and freeze them.  Use them for tomato soup.  Or make a tomato sauce with them in winter. 

I would not freeze whole tomatoes, or even tomatoes cut up into parts.  I don't think that would work. Puree them is the way to go.

edit: I should add that I would cook the tomatoes after puree, and before freezing. My canning book says to simmer 5 minutes. I probably do it longer.