Many people get started in blogging as an avenue to market affiliate programs, and I certainly respect that goal. In fact, that was one of my initial thoughts before I began blogging as well.
Setting affiliate programs aside, I think it’s first more important for a person to identify what topic they would enjoy blogging about on a weekly basis, and secondly building traffic to the blog.
Why? First the obvious reason is due to the fact that if you don’t have enough traffic established you will not be successful with any of the affiliate programs. Zero traffic, or nearly none would equate to zero affiliate dollars from programs you are marketing.
The other reason is because you need to establish a blog on a good foundation based on what you would be passionate to blog about, and on a consistent basis. If you don’t build your blogs on that foundation then you will not have a desire to stick with it long term, which would of course quickly put an end to any goals you may have to market affiliate programs.
So, the real question boils down to, should you blog for money? Yes, perhaps. No, maybe not – lol. It really entirely depends on your goals, but base your decision to blog on what you’re passionate to write about, not based on hype or potential money you can make from a particular affiliate program.
That’s just my .02 worth to help a new blogger or blogging wanna-be determine the foundation to blog upon! 
