Drop an email to the address in my profile. I can probably write up a laundry list of things for you to work on tonight.

Marketing is a broad thing - advertising is a small and limited part, especially for a cash-strapped startup. But getting people aware and interested matters. What have you done today to make more people aware of your product, or improve how you explain it to them in order to increase interest and conversion rates?

If you have some spare time, it might be good to do some reading on the business/marketing side of things. Have you read The Lean Startup? Or How to Win Friends and Influence People?