Google Adsense is the most used ad program in the world and with good reason.
10. Integrated into Blogger.
If you have a blog that you didn't pay for, chances are, you use Blogger and it's always nice having a convenient little tab called "Monetize" that lets you add and customize ads that you want to display on your blog.
9. They'll help.
This is great for newbies. Like all Google services, Adsense has one of the most useful help sections in all of the internet, detailing every feature, fact and technique there is. They'll guide you through pretty much everything.
8. No spam ads.
A problem with a lot of smaller Adsense alternative is that they have to resort to misleading ads that link to malicious, cheat or illegal sites that pay more. However, with the larger audience, Google doesn't have to so you're safe from any complaints or lawsuits.
7. They find the ads for you.
The problem with a bunch of ad publishers is that they make you link up with an ad displayer, which is a long, gruelling process suited only for sites with a ton of views. And in the meantime, they often display ads that don't pay you a single penny, which is really frustrating.
6. No traffic conditions.
A bunch of the "premium" ad sites that are pretty much the same as Adsense demand that you have at least 100,000 individual page views every month, or some other outrageous number for smaller pages. However, Adsense doesn't require a certain number of views or clicks or click-through rate. On the other hand, it's not like they don't have conditions; there's a great deal of restricted types of content, quality guidelines (you need a site map), rules you have to follow and other things, but it's easier to obey these than traffic conditions.
5. They will actually pay you.
You can trust a company like Google to pay you because they want to retain their reputation. But other sites aren't as trustworthy and have not reputation to retain. There are a lot of scam ad publishers that just keep the money to themselves with creative little schemes. However, it's not going to be a way to earn a living; and the $10/click that Bidvertiser offers is pretty attractive compared to the few cents that Google is giving you. Trust be though, it'll be better in the long run.
4. Relevant ads.
It's hard not to find an ad that has something to do with what your site's about in Google's massive database. And you know the deal with their amazing search algorithms that are bound to find something.
3. Low payment threshold.
Last time I checked (a few minutes ago), the minimum payment was only $10 (US) while many other companies demand $20, $50 or even $100 worth of clicks/impressions for you to claim anything. This is fine for some people but definitely not for the hardworking little guy on main street.
2. Most reliable.
First of all, it's not like ads are suddenly all going to disappear because the server crashed or the code screwed up; that'll probably never happen. Also, that little symbol that reads the familiar "Ads by Google" is enough to tell someone that they aren't going to be mislead, obviously leading to more clicks.
1. Most feature-rich.
I can't really stop talking about Adsense's features. You can display the ads in different formats, on different types of sites, in different places, with easy earnings tracking, on multiple different sites with the same account. This is just the beginning.
On the other hand, I'm going to stick with my Bidvertiser just because my blog isn't exactly at an advanced stage yet. When it reaches a decent number of page views though, I'll definitely make the switch.