GLAM-Wiki LibGuide from Metro, with ideas on how to integrate Wikipedia into your workflow, how to learn about use cases, and articles on GLAM-Wiki projects.
GLAM Beginners’ Guide to Wikipedia on account creation, article editing.
Wikipedia Loves Libraries Editing Ideas for ideas on what to edit.
A very thorough training/educational resource for GLAMs made by Ally Crockford of the National Library of Scotland. (Click the picture to the right for the link.)
A fabulous list of GLAM resources all in one place created for the GLAM Wiki Conference 2015: Outreach:GLAM consortium meeting agenda ideas, 2015/GLAM-US Resources Annotated Bibliography
Disclose your affiliation with the Center for Jewish History or its partners on your Wikipedia user page before editing. (The user page can be found in the top right corner of any Wikipedia page and can be edited like a regular article).
If you edit articles about the Center for Jewish History as an institution, other Wikipedia users may perceive a Conflict of Interest. Simple factual changes (e.g.: personnel updates or outdated statistics) may likely be made without raising eyebrows, but more substantive changes should be proposed with a critical eye towards a potential Conflict of Interest. Such articles should be edited using appropriate discussion pages, and encouraging feedback from other Wikipedia editors.
Additions to articles must be verifiable. This means that independent media or academic secondary sources should be cited whenever possible. Where CJH-published literature or web pages represent original scholarship, they may be cited, but they must go along with an additional verifiable source to back up this information.
When editing articles, always maintain the impartial voice. You are writing an encyclopedia, not speaking for the Center for Jewish History.
Nerdier stuff
Page size has tips for editing a long article or splitting articles
See the Protection help page for editing protected pages or requesting status changes