Link building tools are everywhere, so much so that it's safe to assume we've saturated the market, and it's time to move on to building something else. While I rely on some of these as much as Instragram relies on selfies and food photos, some of the best tools I’ve found for link building were actually created to serve a completely different purpose.
http://searchengineland.com/5-tools-you-never-thought-to-use-for-link-building-144749
