Ganja Tours

http://www.thebigtrip.us/ganjatours.html

If you're in a hurry or don't know which one of Amsterdam's 250 coffeeshops to try call Ganja Tours. They're experts in the field of cannabis consumption. During the tour you'll visit a few of the more unknown coffeeshops in town and learn a bit about current trends in the world of cannabis. Naturally, there's also plenty of time for smoking and you can ask the budtender questions.