Where to get further information on Heroin
http://www.google.com
Google is a search site that will give you alot of information on heroin, and in google you could search up other things you want to know about heroin.
http://www.wikipedia.com
Wikipedia is a site where the site itself will give you the information, it is not like ask, yahoo, or google where it takes you to other tabs
http://www.yahoo.com
Yahoo is another search site just like google where it will give you all the necessary information you need about heroin.
http://www.ask.com
Ask is another search site which will give you information on heroin