A TeX calendar for 2013 has been prepared by Marc van Dongen and is available to all (a4, letter). Thanks Marc!
Each TUGboat issue contains a calendar of TeX and typography events. If you have an event you would like to have included, please send information to tugboat@tug.org.
For the online version, see the TeX calendar maintained by all TeX user groups: month view, year view.
Other typographic calendars: