Affiliate marketing is also called "performance marketing", in reference to how sales employees are typically being compensated. Such employees are typically paid a commission for each sale they close, and sometimes are paid performance incentives for exceeding objectives. Affiliates are not employed by the advertiser whose products or services they promote, but the compensation models applied to affiliate marketing are very similar to the ones used for people in the advertisers' internal sales department.
A blog highlights your technical ability and showcases your ability to write blog posts. Your blog can be about different topics than those you write about for your clients. In fact, it should be on a topic that interests you. Visitors will see that you can not only write, but you can also build an online community. A good blog has the potential to earn you many referrals for more clients.
One of the reasons I like Wealthy Affiliate is because it enables me to provide this blog for free to people, but also be able to sell a genuinely high-quality product that I know is always updated and provides a better service than I ever could. Plus, when people sign up using my affiliate link, I can still provide one-on-one coaching and support as a way to add value and as a “thank you” for signing up using my link. Wealthy Affiliate truly is a win-win-win setup.