Adwords continues to rule the online advertisng market. Adwords alone contributes with more than 95% of Google revenue and this number seems to be increasing and some experts estimate that this value will go up to 99%. What makes Adwords so good and so unique? Targeting.
Before telling you right away how to get the cheapest clicks let me explain you what Google objective is to Adwords and why it works so well.
What kind of person are you? Let's say you are catholic, you liek music, you like computers, you like Hondas and you hate pizza. Based on all your past searches and if you use Google products such as toolbar and you enabled Page Rank, Google has a huge amount of information about you they use to show you ads about things you like. Google is very smart. They know they will never be able to sell you Arabian books for example since you are catholic. They will never show you pizza ads because you hate pizza. Instead they will show you ads about Hondas that you like so much. They will show you ads about computers and ads about computer components. All this is done based on your past queries and websites you visited. You have a huge personality profile on Google and you probably didn't even know!
Now when you search for something on Google you will get up to 11 ads. 3 On the top and 8 on the right. The problem is most advertisers are already spending a lot of money in this place and most of the times you have to spend a big minimum bid such as 1.00$ to get a click for music websites for example. That's insane for most webmasters and webmarketeers that want just to sell a cheap music product. If they use less known keywords they will not reach enough people or enough clicks to make it profitable.

So what is the solution? The content network.
Most advertisers don't look at the content network with good eyes because of click fraud and other scams such as impression scams and a lot of website scripts that will blur all the visitor tracking codes.
If you choose to advertise only on the content network you usually have to pay only 0.01$ per click even for the most expensive keywords. This is possible thanks to the huge amount of webmasters that are willing to show Adsense ads even if they make only a small amount of money per click. Since the Adsense network is so huge, you will find little competition and sometimes the competition is so small that Google has to display public ads!
You don't have to worry about click fraud because Google takes pretty good care about this issue. It's their business isn't it?

If you don't like to pay per click you can always try to place you ad using placement options instead. The minimum price is 0.30$ per 1000 impressions and you will always pay the same no matter how many clicks you get. If you get 10 clicks for example you can estimate you will get a CPC of 0.03$ which is amazing.
To track all your conversions I recommend you to use Google Analytics.
If you don't like to advertise other people's products you can always creat your very own product. Using a cheap web hosting such as www.godaddy.com plus www.clickbank.com you can create your own online shopping place to make money and you can even have affiliates to promote your product!