Larian Studios Forums Divinity - Original Sin Divinity - Original Sin - General Original Sin on Moddb

They also said they would love to be on the Nexus. Moddb is cool too, but being on both isn't really interesting (spreading the mod resources instead of gathering them), and, in my opinion, the Nexus is more RPG-oriented.

Steamworkshop works quite well, but it'd need to use Steam, which I personnaly won't. As Nexus and Moddb have more visibilty than Larian's own site, I think it's the way to go.