libraryofbabel.info bookmarks are very cool in my opinion

e.g. if someone bookmarked some page as “secret”, you can find it as https://libraryofbabel.info/bookmark.cgi?secret

if multiple people use the same name, a colon followed by a number gets added, e.g. the second time someone bookmarks something as “secret” it’ll be at https://libraryofbabel.info/bookmark.cgi?secret:1, then the third is at https://libraryofbabel.info/bookmark.cgi?secret:2, etc.

do with this information what you will