The Rural Dweller ∙ 33 weeks ago
It's affiliate marketing. AM comes in many forms, and offering free stuff is only one of millions of strategies in the internet world. After all, only affluent companies offer free stuff such as McBook, iPad, or iPhone. They are limited, and are not for everyone.
Some people are diligent enough to acquire those free stuff -- which is a good way to earn and make money. Others are even making a good living simply from receiving free stuff. However, let's face the fact other people simply read and create their own blog either as a hobby or as a passion. Whatever it is that serves a good purpose needs to be respected.