You can also create pins for freebies like webinars and ebooks, so you drive people to your email list and promote your affiliate links via email—no blog required. Create several different freebies and make a dozen pins for each.
Recording your various expenses and sources of income is critical to understanding the financial performance of your business. Keeping accurate and detailed accounts also greatly simplifies your annual tax filing.

Let’s assume you register yourself with an Affiliate Network and decide to promote a product which is, say, a Coffee Maker. You promote it with various means like creating websites, posts on your site, PPC advertising, banners and text ads on social networking sites. Now someone clicks on those affiliate links and buys one or more products. Then that will be called a sale through your affiliate link. Once done successfully you will get the commission as fixed by that merchant.
Remember, it is your repeat visitors who are most valuable to you; they are the ones who will give you linkbacks and recommend your site, growing your customer base—not the ones you lured in one time by misleading them. You need to be honest and ethical with your customers, building relationships with genuine content. If all they see is a profit motive—that you don’t ultimately have their best interests at heart—they won’t be back.