The format is <a href="the link>the text to appear on screen</a> - you omitted the "http://"
Like this:
874 Diacetylmorphine HCl (better known by its brand name "heroin") is invented in England by CRA Wright. This is done by combining morphine and acetic ... <a href="http://www.drugwar.com/drugpolicy.htm">link</a>
874 Diacetylmorphine HCl (better known by its brand name "heroin") is invented in England by CRA Wright. This is done by combining morphine and acetic ... link
Thanks.
irrelevant but interesting link
I also just learned how to do blockquotes
(which turns out to be a pretty "duh" operation).