Google, Yahoo, and Bing are the big three in search engine marketing, but they are far from the only online marketing platforms available. There are millions of people who use Ask.com, Business.com, and Miva.
Social Media is also becoming a major player in online marketing. Facebook has millions of devoted followers and they've begun selling ads. There is also Craigslist to market services in a specific region. Twitter offers a type of advertising, while LinkedIn offers their own ad format.
Part of my search engine marketing services is to help clients to decide on what is the best way to utilize their adverting budget
