If one asks educators about online resources that make their lives easier or make a difference with instruction, they will likely all respond passionately with some site, tool or app and a story about how it works. This year, the authors set out to include 13 tech resources they find valuable in their work or in work with others. They feel these resources make a difference due to unique aspects of their design or ease of use that cannot be found elsewhere. Unless noted, all of these apps and web-based resources are free.