Jacob Sullum highlights a new marijuana-friendly site:
A new website, Marijuana Majority, keeps track of prominent people who are "speaking out in favor of changing marijuana laws." The range of opinion represented by the assembled quotes is wide, from criticizing an overemphasis on criminal justice in dealing with drug problems (e.g., New Jersey Gov. Chris Christie) to advocating the general repeal of drug prohibition (e.g., Fox Business Network host John Stossel). Looking just at marijuana policy, the views include sympathy for medical use (a position shared by about four-fifths of Americans), opposition to arresting pot smokers (also a majority view), and support for treating marijuana like alcohol (which recent polls suggest half or more of Americans favor).
My critique of current drug laws is noted here.