Sure hope you got in on this, it has now ended.
Pinecone is one of the most respected research panels. They will pay you $3 for answering questions. They do not take new folks all the time and a place with them is very sought after, this is a limited time thing. If you have been thinking of doing something a little extra, this is the one, they are only accepting so many new folks so act quick. No it does not cost you anything.
and .. your thoughts?