Weedmaps drops thousands of unlicensed cannabis ads, but some illegal shops remain

California-based Weedmaps has lived up to the pledge it made in August of dropping unlicensed marijuana retailer ads from its site by New Year’s Day.

But there’s a caveat: The self-published nature of Weedmaps’ platform, combined with its lack of vetting ads before they go live, has given illicit businesses an avenue to keep at least a limited presence on the site, several industry insiders said.