5. Sell ad space. Once your site has lots of highly targeted traffic, or a large, targeted opt-in list, you may be able to sell advertising. Advertisers are willing to buy ads when they're being directed at large numbers of their target market. Nowadays, though, advertising revenues are a lot less than they used to be, so I don't recommend you plan on making this your sole source of income. Selling ad space can be a great additional profit stream, but it's unlikely to keep your business afloat on its own.
6. Create a joint venture with like-minded businesses. Joint ventures are all about related businesses teaming up and combining skills, products, services and resources to create new streams of income and profit. One great way to profit through joint ventures is to seek out products or services that would benefit your visitors, and then approach the companies that provide those products or services. Ask them if you can recommend their product or service on your site for a portion of the profits. Most companies will gladly agree to this arrangement--after all, there's no risk for them since they only pay you when you refer a paying customer.
7. Start an affiliate program. With your own affiliate program, you can recruit an army of people (your affiliates) who will recommend your product on their web site for a percentage of any sale they refer. You have the power to exponentially increase your income as more and more affiliates sign up and you continue to teach your existing affiliates how to increase their commission checks (and your income).
It's one of the most powerful forms of online advertising I know. It allows you to grow your profits while keeping your business small, since you don't have to go out and spend money on salespeople and advertising. Your affiliates do the advertising for you, and you only pay them when they make a sale.
