http://www.sciencedaily.com/releases/2009/08/090805110741.htm
http://www.dailymail.co.uk/news/article-471106/Smoking-just-cannabis-joint-raises-danger-mental-illness-40.html
http://www.justthinktwice.com/factsfiction/fiction_marijuana_is_harmless.html.
http://www.justthinktwice.com/consequences/drugged_driving_you_get_high_and_drive.html
We can each post links till we're blue in the fingers - but how do they stand up to scrutiny? Let's look at your first link:
"Marijuana is harmless"
Straw man - nobody on this thread said that.
"Marijuana is not addictive"
Straw man - nobody on this thread said that either.
"Research shows that kids who use marijuana weekly are nearly four times more likely than nonusers to report they engage in violent behavior."
Correlation is not causation - all this proves is that kids who break some laws break other laws. What a shock.
"In 1999, the Institute of Medicine (IOM) published a review of the available scientific evidence in an effort to assess the potential health benefits of marijuana and its constituent cannabinoids. The review concluded that smoking marijuana is not recommended for any longterm medical use"
What a distortion. Here's an exact quote: "there is no clear alternative for people suffering from chronic conditions that might be relieved by smoking marijuana, such as pain or AIDS wasting."
I don't have time to dissect every factual and logical error in every link you toss up. Suffice it to say that links don't win debates.
Um yeah...
That will go over with conservatives....
Hell even some libs aren't even that goofy...