what is the bestest tool for your website you ever had? message boards? guestbook? poll? etc etc

I'd have to say my blog from greymatter (http://noahgrey.com/greysoft). Its a great tool and allows immense self expresion, etc. I can't believe I ever had a website without it!

I don't have my site up yet.... but it recently has been "born" thanks to Paint Shop Pro 8 *which i recently own*

Forums, probably. They give visitors a lot of freedom to interact. ;)

I agree with Spirit, definitely Greymatter.

mine is a tagboard and forum