Eight librarian contributors share their experiences blogging, pinning, and tweeting from public, academic, and special libraries. Case studies range from relatively simple (new-book displays on Pinterest) to labor-intensive (overlaying social-browsing features on a library catalog). Authors emphasize not jumping on the newest, shiniest services without considering staff time and commitment, and they discuss how each tool fits with the library’s mission and community. Project-specific WordPress scripts and Drupal settings benefit readers. Overall, the studies provide practical, tested advice from a range of library types.