I’ve just learned about this site, and I’m still exploring it myself, so this is more of a “heads-up” post, rather than a recommendation.
Freelancers Union is a free membership site for independent workers. There are links to create contracts, find group insurance (although group rates aren’t available in my area), find jobs, join the community discussion, and other resources.
Like I said, I’m still exploring. If you know anything about this group, I’d love to hear your thoughts in the comments.