What is a Affiliate Marketing ?  Affiliate Marketing means a method of earning revenue between different sites. It may involve selling products to just bringing visitors to a website. One is the Merchant Website which has the goods to be distributed and they do this by advertising their products on other people's website. When a sale is made some part of money goes to to publishers and rest to the advertisers of the product.

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Most Popular and High Yielding Affiliate Programs :-
1.Google
Google has the largest share of the affiliate programs in today's market. They most exciting schemes and latest methods of advertisements. From text ads, link ads, image ads and now video ads.

Good points :-
World's most popular and most trustworthy. Compare the websites how many sites have google ads on them. Let me guess 80%.
You can choose any categories of ads to be displayed on your website.
High earning clicks $ 0.10 per click

Bad points :-
Less popular keywords only earn $0.01 cents per click
Forget it there are NO FLAWS. Just join them.
 

2.Yahoo or Overture
They rank second only to google advertising. They are the most oldest company to start advertising before then google also.

Good points :-
Highest earning keywords. Average is $0.80 per click.
Yahoo ads have reported to been clicked more then google ads.

Bad points :-
There is a joining fee to have their advertisements displayed on your website.
They do not accept all sites. Only high content rich sites only.


3.Bidvertiser
Bidvertiser have entered late into this field but slowly they are gaining momentum and have found several advertisers.

Good points :-
They are regularly increasing their click through rates.
They themselves are offering free leads.

Bad points :-
You might receive ads that are not content relevant.
Not many options regarding formats of ads shape.


4.CJ.com
This is the third largest affiliate program in terms of revenue wise but this is the largest affiliate program according to number of advertisers they have.

Good points :-
Loads of advertisements to choose from.
Revenue system maximun from any other site. Some may involve 90% share to publishers and 10% to advertisers.

Bad points :-
Conditions for getting advertisements are tough. Your site needs to be popular and must have daily visitors.
Mostly selling is involved. So, most websites are not trusted by general visitors when they want to buy something.