Urban crafters, including small business owners and craft micro-retailers, were surveyed and interviewed to understand how and why they share business and crafting information. It was found that crafters are more likely to share business information than design information. Personal contacts and online message boards are the most common ways information is shared. While sharing information can benefit crafters by saving time, some are reluctant to share due to concerns about competition. The study developed a model of crafters' "information horizons" and implications for libraries, crafting communities, and government agencies to better support independent crafters.