Comparing Political Polls: two websites that track multiple polls

How do you interpret political polls, when one can come up with such different information from another? How do you know if they are biased towards one candidate or another? Compare several polls.

The following sites track political polls:

http://www.realclearpolitics.com/

http://www.pollster.com/

Here is a website that tracks electoral vote results

http://www.electoral-vote.com/

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Posted in Election 2008. Comments Off on Comparing Political Polls: two websites that track multiple polls