Get the DiRT on this
DiRT is the Digital Research Tools wiki. It is designed to collect information on tools and resources for scholars, but many tools suit the needs of the primary and secondary classrooms. DiRT provides a directory of tools organised by activity, such as ‘author an interactive work’, ‘collect data’, ‘create a mashup’, and ‘search visually’.
The team behind DiRT includes academic librarians with expertise in the humanities, science, and business. Most of the tools listed are free, and the editors insist that those that are not free are worth the money. If you are interested in contributing to the wiki, instructions are provided on the front page.