I'll start throwing these out regularly since the election is less than 50 days away.
Nate Silver has gained a reputation as being one of the better election forecasters. He also adds great insight into polling methodology, so he has a lot to teach us about how polls work - and don't work.
Here he argues that Obama's convention bounce - of about 3% - may not be receding. He also points out that polls that reach out to cellphone user show greater support for Obama than those that do not.
