I received a letter today in the mail from The National Opinion Network, Infant Division, Mt. Vernon, IL. It says it is a members only marketing research group that develops new products and I will receive free gifts with continued participation in occasional questionaires. I have had baby product manufactures contact me directly for participation in a new product research study but it was directly from the company (i.e. Safety First, Munchkin) and I signed an agreement with them. This generalized "Opinion Network" looks fishy to me. I was wondering if any other new moms have received this letter and participated. Is it worth it? Or is it just a way to get all my information for annoying marking?