Updated May 10, 2007.
Having recently seen several pleas from extremely stressed people for something to cheer them up, I've made a quick first pass at a list of suggestions, for future reference.
I will continue to update the list as I find suitable items, so feel free to make suggestions in the comments. I might not add them, because I'm using my own idiosyncratic sense of what makes me happy to keep it a reasonable length (that is: "funny" is neither necessary nor sufficient), but someone browsing might well enjoy the suggestion.
Note: please say whether a link (1) is work-safe or (2) requires plug-ins.
( Some Cheerful Things )