A free passive and active candidate sourcing tool to find resumes and candidate profiles on top social networks and search engines. (e.g., Google, Yahoo, LinkedIn, Facebook, Twitter, ZoomInfo). [1] ReferYes provides tools for sourcers and recruiters to help them find candidates online. Now, you don’t have to be a Boolean expert or familiar with the X-Ray search techniques to source candidates. It also includes an automated advanced search strings developed by search experts to find resumes and candidate profiles on the web.