Twitter is a microblogging service that allows users to post short messages, or "tweets", of 140 characters or fewer. This document outlines how job seekers can use Twitter to improve their job search by networking, positioning themselves as experts, and promoting their skills and experience to recruiters who use Twitter. Key advice includes using a professional Twitter profile with photos and keywords, tweeting about your industry and expertise, interacting with others, and avoiding any unprofessional content that could hurt future job prospects.