http://news.findlaw.com/ap/other/1110/10-19-2009/20091019130510_17.html
Gallup polls show we're at a 40 year high approval rating for legalization:
http://www.gallup.com/poll/123728/U.S.-Support-Legalizing-Marijuana-Reaches-New-High.aspx
PRINCETON, NJ -- Gallup's October Crime poll finds 44% of Americans in favor of making marijuana legal and 54% opposed. U.S. public support for legalizing marijuana was fixed in the 25% range from the late 1970s to the mid-1990s, but acceptance jumped to 31% in 2000 and has continued to grow throughout this decade.
This one on how it's going in Massachusetts, not quite 1 year after legalization:
http://criminaljustice.change.org/blog/view/ten_months_later_hardly_a_glitch_for_legal_pot_in_massachusetts