Of the different techniques of link bait they emphasize:
Matt Cutts defines this term as "anything interesting enough to catch people's attention."
The potential of "link bait" in marketing is very important because of its viral nature.
At the SEO level, Link baiting is defined as the web technique of creating good content, be it a story, a video, an image, a help article, an idea, an application and promote it properly to get as many of links possible in a short period of time Link Baiting is one of the techniques used by SEOs to get a quick linkbuilding but more difficult because it requires a high creative capacity to take effect. Ways to link baiting
wiki