The definition of a guild is "an association of people for mutual aid or the pursuit of a common goal". Quite a common trait (union, fellowship) throughout the Ages.
ETAERC is a microblog created with open source tools, that encompasses art, photography, graffiti, #architexture and links to projects and news that I find relevant. It is a space where I collect my thoughts, works and findings. Combined with CORED.org they form the Tricks of the Guild.