Ask HN: Tool for gathering quotes for use in non-specified future context

is there such a thing out there? i'm thinking of a bookmarklet type thing where if I'm reading a speech, it automatically grabs the <quote> tags and perhaps some usr tag functionality. in future, i'm writing an article and need that killer quote by the president but #@$!@ if i remember when it was or what speech it was in. kind of like a super-focused delicious with single use-case in mind.