There's been gplclub.org (seems dead, last blog entry from 2014), woogang.com (looks not very professional, 64 likes on facebook). Now woogpl.com (Closed down, but why?) and gplkit.com. Has anybody used any of these? Are these all one-person-projects?

I am a bit hesitating to installing software on my ecommerce site that comes from a site looking kind of a black market...