I have posted a few entries on my other blogs about Mormons and Polygamy. I think it is fair for Mormons to define their own beliefs, and I would like for everyone to know that we do not practice polygamy in our church. Those who claim to be mormon, and practice polygamy, are lying. I don't know why these people want to confuse everyone about the Mormon church, but luckily the church has come out with several public statements on the matter.
Here are a few links to more information about it. I hope that it helps to clear any confusion up.