http://www.reddit.com/r/opensource/comments/3b5syi/looking_for_an_foss_crowdsourcing_platform/ (for image tagging). AFAIK GMG can't do this yet but someone please correct if it can or suggest something else.
Tyng-Ruey Chuang likes this.
You're quite correct in saying that.
IMO
Matt Molyneaux at 2015-06-26T19:21:47Z
Mike Linksvayer likes this.