I am a political junkie and have also always enjoyed studying history and reading biographies. I highly recommend David McCullough's biography on John Adams and Ron Chernow's biography on Alexander Hamilton. I have been a frequent visitor to Wikipedia for sometime but have finally decided to join the community. Personally, I am a little concerned about the danger Wikipedia can pose. It is a tremendous idea and resource but opens itself up to a lot of misinformation and people with an agenda where as it should be treated more as an informational, facutal encyclopedia.