Link wheel is strategy in which you create some articles on social media websites and link them in a wheel. It drives traffic and backlinks to your websites if and only if you are creating QUALITY wheels.
Here’s an example of link wheel
- Write content on your website
- Create a bunch of quality article and post them on different social media sites
- Link all these articles (published on your website and on social media sites) in form of wheel closing the link loop with your website's content
In this way you link your story and pages back to your own website like the spokes of a wheel hence called a link wheel
Scrappers are abusing this technique and creating wheels of spun and rephrased articles.
There are mixed opinions over the legitimacy of this technique in the eyes of search engines.