Important reminder: Online polls are not scientific
Some actual journalist over at MSNBC took the responsibility to indicate that their online polls are not representative of national opinion. The article is a good reminder about why we shouldn't run out on the street and tell people about the result of an online poll.
http://www.msnbc.msn.com/id/3704453/
And if you really want to know what's up, look into social research methods, and find out how much consideration and research goes into conducting a representative survey.