I've been a blender user for a few years. I have begun to specialize in rendering... though when sufficiently inspired, I will model cool stuff. :).
I'm the creator and operator of blend-exchange, a service used for hosting .blend files on this site.
I provide free CC0 HDRs on my site, be sure to check some out: http://giantcowfilms.com/category/hdrs/
I've managed my first contribution and hope to add more: