Complex sentence: Several websites sprang up to match Nader supporters in swing states like Florida with Gore supporters in non-swing states like Texas: the Nader supporters in Florida would vote for Gore and the Gore supporters in Texas would vote for Nader.
Split into simpler sentences: Several websites sprang up to match Nader supporters in swing states like Florida with Gore supporters in non-swing states like Texas. The Nader supporters in Florida would vote for Gore, and the Gore supporters in Texas would vote for Nader.