The Oregon Medical Marijuana Dispensary Program maintains a directory of licensed dispensaries on the web at http://www.oregon.gov/oha/mmj/Pages/directory.aspx.

As of October 22nd, the Medical Marijuana Dispensary Program has approved 196 dispensary applications.

You can also use online resources such as http://www.leafly.com/ to read reviews about local dispensaries and to check what products are available.