f you are one of those netizens who want to earn money online(the clean way), then you are on the right page. This post is not about paid to click or paid to surf programs. Rather, this post is for those users who have their own website or a blog with their own legitimate content. There are a number of ad networks out there who pay us handsomely for showing their ads on our websites. Well, first I thought that we cannot earn much from these programs. But, when I saw some checks that my friends and colleagues received from these networks, I was shell shocked and that was when I started thinking seriously about it. The higher the traffic you have, the higher will be your income. Below is a list of some popular ad networks.
1. Google Adsense
2. Adbrite
3. Clicksor
4. BidVertiser
5. Chitika
6. Kontera
7. WidgetBucks, etc.

Among the list, Google Adsense is the highest paying program out there. Adsense ads are basically contextual ads which try to show up ads relevant to the keywords in your content. So, most of the times, the user is shown the most relevant ads to the content they are reading. But, now-a-days, getting accepted into Adsense is tough due to the surge in click fraud and invalid activities by several Adsense publishers. But, if your site has your own legitimate and original content and not copied from any where else, then you have nothing to worry about. Just find ways to increase the site traffic(Strictly don't use click or traffic exchange programs. Google has smarter people to detect this and your account will be immediately banned and then you will not be able to have an adsense account ever after that.). Adbrite is also one of the leading ad networks. Please note that Adsense and Adbrite ads cannot be placed on the same page. If you ever get banned from Adsense, then Adbrite is a very good adsense alternative. Likewise, Clicksor, BidVertiser, Chitika, Kontera, WidgetBucks, etc. are very good alternatives. Out of these ad networks, Chitika ads can be officially placed alongside Adsense ads. So, if you have a site and want to make some income out of it, just sign up with one or more of these programs. But first go through the Terms & Conditions of each one of them before joining. And also ask the support team of the respective program if they are compatible with other ad networks. So.... go on and make some money!!

Well there are some paid-to-click programs as well out there like bux.to, clixsense, etc but I don't know if they really pay up. According to net surveys, bux.to is ranked at the top. Its user interface is simple to use too. So go ahead and give it a try if you want.