Libraries are delivering an ever-increasing proportion of their services through the web, a trend that seems certain to continue. In order to guide purchases and appropriately distribute services and staff time, it's essential that libraries and librarians accurately track the usage of their websites and online resources. In this issue of Library Technology Reports, Kate Marek offers a practical guide to web analytics tools, explaining what librarians need to know to implement them effectively. Topics include: * An overview of web analytics tools * Understanding data collection mechanisms * Installing and configuring Google Analytics * Effective reporting and analysis * Case studies of libraries using web analytics