Yep. I've shared my side projects here and allowed them to get off to a great start.

http://hellobox.co (create your own HackerNews clone) http://sideprojectors.com (a market place for side projects)

I think sharing "relevant" projects for the audience is quite important. The subreddit r/startup is also quite good or r/sideprojects if you are looking for other places to share your projects. ProductHunt is also quite popular thesedays of course.