[nedwin]

I think better than the social media marketing blog or building and selling a product would be to find someone else's product you can help grow.

Like Noah you can find an old master to train under too.

A lot of self-taught coders do this by building websites for friends and family when they get started, why not do the same with marketing?

But overall agreed - not easy to demonstrate marketing chops until you're in the hot seat. :)