A computing system may include at least one client computing device and a display associated therewith, and a server configured to provide access to a plurality of shared applications by the at least one client computing device, and extract text displayed by the shared applications on the display while the shared applications are being used by the at least one client computing device. The server may also be configured to generate a concept map associating the extracted text with actions initiated by the at least one computing device after displaying respective text on the display, and determine a suggested action to perform based upon text subsequently displayed on the display and the concept map.