Links
[1] http://www.denverpost.com/news/ci_26119492/colorado-estimates-state-annual-pot-consumption-at-130?source=infinite
[2] http://www.rethinkpot.org/tags/colorado%2A
[3] http://www.rethinkpot.org/tags/colorado-0
[4] http://www.rethinkpot.org/tags/usage