It's all about the action that you take.
You think time is money? Pssh, wrong again. Time is time.
Want to make money without spending any money? Then start taking action right now. Stop sitting around and doing nothing.
But wait.. we need money to make money, right? Nope.
Think of companies like 37Signals.
Instead of going out and spending all of their money on advertising, they share knowledge and information.
Without having a huge budget, their products are now used in 321 of the Fortune 500.
That's because they took action and they stopped focusing on trying to spend money to make money.
Create a WordPress or Blogger blog and start sharing information in whatever niche you are experienced in. Even if it only means a few minutes a day, it's something.
You don't have to be the professional, you could interview professionals, talk with friends that have interests that you don't and share their knowledge.