You can place some Goolge Adsense ads on your site. Basically these are ads that relate to the content of your website. You receive a click-through fee for visitors that click the ads from your site. Visit http://www.google.com/adsense/ for more info.

Another option is to sign up with affiliate programs such as Commission Junction (www.cj.com) and Linkshare (www.linkshare.com). Each of these companies have a variety of merchants. Select the ones that compliment the theme of your website, promote specific items from said merchants, and earn a commission on the sale of the items.

Keep in mind, though, that both these types of "income" require a lot of work: knowing what your target market wants, selecting the right merchants and products, and most importantly promotion of your website.

Best of luck,

Kathleen
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