Step 1.24: Social Signals
Core Concepts | Search Engines | Authority | Social Media
Social signals can play a small part in Google’s algorithm, they can help to build legitimacy as an online entity.
Having an active social presence on the web and a positive one can help to support your overall SEO strategy. They can help to show Google that you are a trustworthy or legitimate entity.
You can build backlinks from social channels, but they are usually low value links, that doesn’t mean they are potentially dangerous, just not very beneficial. As such, the value of social media is derived in other ways.