In simple terms, affiliate marketing is when you earn commissions for recommending products/services to readers (or people you know). This is done by joining affiliate programs, where you get unique links (tagged with your personal ID) that tracks whenever your links convert to a sale. If someone out there buys something through your link, it rains money. Or, well, usually a smallll percentage of the sale, but it’s a start!
A text file that is sent from a website to a file within a user's web browser. Cookies are used for various reasons on the web as a whole. In regards to affiliate marketing, Cookies are used to assign an ID to a user that has clicked on your affiliate link to get to a merchant website for a predefined period. If the user returns within that predefined period (whether or not they click on your affiliate link again) then you will be credited with the sale. Example – a user clicks your affiliate link (cookie gets “dropped” to their browser) and then bookmarks the merchant's website to buy later. The user returns before the Cookie Expiration and makes the purchase. You would receive credit – and this commission – on the sale.
And what about joining another company's affiliate program? It's all about extra revenue. Think about your customers' needs: What other products or services would interest your site visitors? Join those affiliate programs. Affiliate programs can increase your sales with no upfront cost to you. It just takes a little time to plan your strategy and select the partners that will have the greatest impact on your business.