This document provides guidance on social media sleuthing tools that journalists can use to find publicly available information about people online. It discusses tools for searching platforms like Facebook, Twitter, and other sites to discover details about a person's relationships, locations, interests and digital footprint. The document emphasizes that social media sleuthing is not hacking or illegal if used to gather openly accessible information, but cautions journalists to avoid stalking or invading privacy. A variety of free and paid search engines, analytics platforms and privacy tools are described to help journalists conduct open-source intelligence investigations online.