Most LinkedIn users are probably familiar with the site's longstanding offerings, including job postings, the news feed, and congratulating people you've met at a conference on their work anniversary. But unless you spend a lot of time on the professional networking site, you may not be aware of some of the more recent additions, like the "I'm Interested" button that some companies have added to their profiles.

In short, the “I’m Interested” feature allows users to privately express their interest in working for a particular company without applying for a specific position. Think of it as the digital equivalent of sending your resume to a company with a note asking their hiring team to keep it on file and consider you for future openings as they arise.

The "I'm Interested" button is located in the "About" or "Life" tabs of a company's profile, or in the "About Company" section of individual job postings. If you can't find it, the company either doesn't have active LinkedIn Career Page and Recruiter contracts, or they've disabled the feature.

Once you find and click the button, you will become part of the company’s “Talent Interest Pipeline.” This means that the next time their recruiters need to fill a position, they will have the option to search for qualified candidates who have already indicated they want to work for the organization. The recruiters will be able to view your profile and share it with other members of the hiring team, but that’s it. When you express interest in a company, it won’t be visible on your public profile, LinkedIn’s newsfeed, or to other companies or recruiters.