Ann Chapman discusses three different blogs and how they differ in their aims, audiences, and approaches. The CILIP Catalogue & Indexing Group blog aimed to communicate with members and publicize events but posts were too erratic. The UKOLN Cultural Heritage blog complemented the UKOLN website and had guest posts but took time to coordinate. The JISC SIS Landscape Study blog was used to collect data for the project and share information but promotion was difficult. Key lessons are to carefully plan the audience, aims, effort level, and closing down process.