The IHMC CmapTools programs empowers users to construct, navigate, share and criticize knowledge models represented as concept maps. Different versions of the CmapTools program allow users to, among many other features, construct their Cmaps in their personal computer, iPad or on a Web Browser, share them on servers (CmapServers and on the Cmap Cloud) anywhere on the Internet, link their Cmaps to other Cmaps, link resources to their Cmaps, automatically create web pages of their concept maps on servers, and edit their maps synchronously (at the same time) with other users on the Internet.