Well -- not totally good-bye, but darn near. It appears that search engines don't have the same respect for backlinks as they once did. Really -- we're only talking about a dozen years. Even if marketers generate links by Google's guidelines, through reaching out to site owners and requesting them without compensation, or high-quality guest posts, they don't always generate the best possible signal for search engines. Eric Enge provides insight into what he believes will become the future of link building.