If you care about third parties, you should NOT support Instant Runoff Voting.

http://RangeVoting.org/CFERlet.html
http://RangeVoting.org/IRV.html
http://RangeVoting.org/StratHonMix.html
http://RangeVoting.org/vsi.html
http://RangeVoting.org/PropRep.html
http://reformthelp.org/issues/voting/range.php

And "ranked choice voting" (a reprehensibly bad term for the voting method we use here in SF) is NOT the same thing as IRV. IRV requires a ranking of all choices, and doesn't exhibit the ballot exhaustion problem (although both are horrendously bad voting methods).

http://groups.google.com/group/socorg/web/irv-exhaustion

Clay Shentrup
415.240.1973
thebrokenladder@gmail.com