|Advertising is definitely the way the big boys do it, but there are lots of way to make money once you've the visitors. As discussed previously, there are a ton of factors that play into how much you make from advertising but basically:|
"The amount that you can make from AdSense depends on three factors:
1. The number of visitors to your blog
2. The visibility of the ads
3. The topic you are blogging about"
Of course, depending on your website structure, there is no reason you can't sell advertising space as well as monetizing in some other way as well (such as selling your own product).