You can be part of 08 election by visting
http://www.ireachable.com/vote

online opinion poll station too. Here you can cast support to your choice of candidate/party and check how your choice is faring among vote circles drawn by age, gender, state among others.

If you are caucus/primary participant taking the poll you can further differentiate your vote from the rest by setting org/interest circle1='[state] caucus participant' or '[state] primary participant'.

Please try it out and rush as the primaries are days away.