That's right! The SFM Team has added Steam Workshop support to the SFM. Now you can share your models with other filmmakers, rate the work of others, or pick out just the right music for your film. Easily find, subscribe, and download new models and sounds, or create your own and share them with the community.
Models and sounds will be the first asset types the SFM Workshop supports. Model sharing has been one of the most-requested features to date, and the SFM team wanted to ensure that the filmmaking community has a single destination for all models compatible with the SFM. Similarly, the SFM community has made it clear that including dialog would allow filmmakers even greater flexibility in their storytelling.
The SFM Workshop has launched with an assortment of official models and sounds originally from the Half-Life universe.
So go see what's in the SFM Workshop! There's a detailed wiki to help in creating, publishing, or subscribing to Workshop content. Also, be sure to check out the discussion forum, where you might find like-minded collaborators eager to help create the models and sounds for your opus!
As always, don't publish other people's work or anything that others would consider offensive.