If you are in London, England on Sept. 18 you might want to pop over to the British Library on Euston Road. Aside from a brief tour of the workings of the Philatelic Collections department, a seminar on how to write philatelic Wikipedia entries will be offered.
The course will be administered by curators responsible for the library's philatelic holdings with additional guidance from Wikipedia editors. Send a statement of interest to attend to firstname.lastname@example.org. Or telephone: 020 7412 7635. Attendance is free, though space is limited.