Search engine recruiting involves recruiters searching for candidates on search engines like Google by entering relevant keywords. Profiles posted by employees on sites like LinkedIn and blogs get indexed, making them visible to recruiters worldwide. This allows recruiters to easily find potential candidates, get references, and build a database without relying on job boards or paid sites. The main advantages are recruiters can efficiently find many qualified candidates locally or with desired skills, directly contact them, and build their referral networks and pipelines.