Three words.
Value Added Content.
Have content that has a value to the audience you are trying to connect with.
Are you a painter? Have some painting tips and tricks videos you can show your clients to save some money?
Voice over artist? Make a video with tips on sound quality.
If they see you are trying to help instead of bombarding them with self interested advertisment, you will get that client/customer.
RE: How to develop a business without money?