When traffic is coming to your website or blog, nearly unfettered, it gives you the opportunity to test out a variety of marketing initiatives. However, without that traffic, you're forced to spend money on costly ads before really determining the effectiveness of your offers and uncovering your cost-per acquisition (CPA), two things which are at the core of scaling out any business online.
By utilizing SEM, it provides you with a great avenue for getting the word out quickly and effectively. If you have the budget, then marketing on search engines for competitive keywords might be the right fit for you. But be prepared to pony up. Keywords can range anywhere from a few cents to upwards of $50 and more. The quality score for any term is reflective of what you can expect to pay for bidding on that keyword. The lower the competition, the lower the quality score and the lower the price.
^ Shashank SHEKHAR (2009-06-29). "Online Marketing System: Affiliate marketing". Feed Money.com. Archived from the original on 2011-05-15. Retrieved 2011-04-20. During November 1994, CDNOW released its BuyWeb program. With this program CDNOW was the first non-adult website to launch the concept of an affiliate or associate program with its idea of click-through purchasing.