Even with no "product"
you can get paid.

Making money online used to pretty much demand that you have your own glossy web site, unique products to sell and some marketing brains. But a new generation of companies have appeared that will pay you for advertising on your blog or website - without you first becoming an advertising or marketing guru.

Chitika.com  - Add these highly effective ads any place you like on your website. Ads can be text or graphics. Super easy to install in more than ten different sizes and formats. They detect the content of your website and adapt the ads shown to match your content and keep visitors interested. Every time a visitor clicks on one of these you get paid. Sign up takes only two minutes, and you can paid directly into your PayPal account if you like or per check.

Shopping.com - Add widgets to your site that display products based on keywords. For the ultra-skilled, you can even customize the entire user experience by tapping into their API. I am certain you've seen sites with this installed, and you never realized it how it can work for you.

Clicksor - These are the guys that generate contextual ads on sites that show up when you hover over a double-underlined word in teh middle of a paragraph of text.

Vizu -  Instead of putting ads on your site, you insert polls. You get paid based on the CPM (cost per thousand) that you can get completed. The better positioning of these on your site, the better you will do. The nice part of this is that everything is embedded into your site, thus allowing visitors to participate without having to leave your site . That is key.

Clickbooth - Clickbooth is a site that blog owners or site owners can join to place Cost Per Action ads on their site. It already has a base of solid advertisers and is similar to Commission Junction or Linkshare. 

Pheedo  - If you have an RSS feed, run it through Pheedo. Just like Feedburner or Adsense feeds, they can include ads into your feed and if you really become large, advertisers will pay you a premium to include their ads.   

Shareasale.com  - Find affiliates to promote your site. They do all the admin. work, taking payments and paying affiliates for you. $500 to join, but they promote you to their affiliates.  They are similar to Commission Junction and Linkshare however they target different advertising offers.