Yes, even in the age of the Modern Web™
Let’s say you have a blog and you just published an article. Ideally, that article will be shared on the web, linked from other people’s blog posts and mentioned in social media comments. These links that point back to your article are fittingly called LinkBacks.
Monitoring these linkbacks is important to website owners and bloggers. They allow you to follow the spread of your articles through the internet. The idea is; when someone on the internet links to your article, you get a linkback notification from them. Some bloggers choose to display those publicly (usually under the article), some of them only save them to their database while others just disable the functionality entirely. Regardless of your intent, you will eventually receive them. Handling them will prove useful to you.