I also agree that you need to learn seo. dont buy into the "content is king" theory, if it were true, bizrate.com would not rank for anything.
Get your onpage right and start building quality links from related sites or pages. Try to get links from pages with one or more of your keywords in the title and content of the page. This is why articles work soooo well. you control the title and content.
You can make a killing with adsense if you use the right keywords. put some thought into it befor you run a keyword, look for keywords that hint that someone is looking to buy.
example: web design is general, may not be looking for a designer, but information about web design, I would bid on professional web designer. This tells you they are looking for a pro, not general information.
next, never use overture for keyword selection. here is a link to a free tool. the results are daily searches for any phrase.
Free Keyword Suggestion Tool from Wordtracker
Hope this helps