In 2009, after many years of decline, the era of secondary affiliations to multiple major networks (once common in communities where fewer stations existed than networks seeking carriage) finally came to an end at the smallest-market U.S. station, KXGN-TV in Glendive, Montana (which was affiliated with both CBS and NBC). The digital conversion allowed KXGN to carry CBS and NBC programming side-by-side on separate subchannels, essentially becoming a primary affiliate of both networks.
Affiliate marketing overlaps with other Internet marketing methods to some degree, because affiliates often use regular advertising methods. Those methods include organic search engine optimization (SEO), paid search engine marketing (PPC – Pay Per Click), e-mail marketing, content marketing, and (in some sense) display advertising. On the other hand, affiliates sometimes use less orthodox techniques, such as publishing reviews of products or services offered by a partner.