Good queston :)
My favorite sites are www.jwfiles.com, this is Shaun's Research on the Jehovah's Witnesses site. There are a lot of categories and topics covering nearly every JW false teaching. A very good site for doing research, saves you tons of time. The other is www.jwinfoline.com, this site has recorded testimonies and teaching tapes you can listen to while on line, you can download them as well. If you coundnt get to the PA convention it's likely you will find what you missed on this site. Hope you find them as useful as I have.
William,
former member of a Non-Prophet Organization