At work, I usually update the small bulletin board in my office either monthly or every other month, depending on what I encounter. I tend to save clippings anyway for a possible yet unknown future exhibition (how about Martin Luther sea monks?). Besides news and announcements, the postings tend to be memory items as well as odd stuff.
These are a little different, as some entries are links to the web, and the size is probably 3x greater so there are a few more items than usual. The past week has been crazy, so I would more-than-likely update the bulletin board a few times in June as responses emerge to this world of trouble.