shrinking swap space

[John Almberg]

Since my server locked me out last week because it was out of swap 
space, I've been monitoring the swap space every 4 hours. It started off 
with 3% used and little by little it has crept up to 17% this morning.

I've been reading up on the subject in my two FreeBSD books (Absolute 
and Complete) but neither give me a hint on how to find the program(s) 
that are slowly eating up my swap space.

Is there a utility that shows which programs are using swap space? Or 
that can help debug this problem?

Thanks: JOhn