It's a google search task, if you are good with google search, you can easily do this
Do not add any rehabilitation clinics, websites about marijuana addiction or any other negative subject.
marijuana blogs, medical marijuana sites. marijuana seed websites, marijuana growing websites, marijuana forums
ALL marijuana related websites
You will put only Website url and email address in excel sheet, that's it
Looking at least 500 website urls and email address and if you can provide more, you can provide
Deadline within 3 days