From http://www.faqs.org/faqs/quotations/part1/ :
alt.quotations is a newsgroup for everything related to quotations;
it is read, and contributed to by people from all over the world. If
you have questions regarding the author of a quotation, or want to
share your favorites, have a question about the meaning or background
of a quotation, or simply want to read some quotations posted by
various contributors, this is the place to be. You can also discuss
software and books on quotations here, or anything else, as long as it
somehow has to do with quotations.
What is an ObQuote?
Whenever you feel the need to post to alt.quotations, and your
posting does not already include a quote added by you in the course of
posting or answering, it is considered good manners to supply a quote
anyway--this is, after all, alt.quotations. This quote is known, and
usually announced accordingly, as an ``obligatory quote''--an
ObQuote for short. In alt.quotations, your wittiness is judged by the
relevancy of your ObQuotes.
Reading the rest from the link above is highly recommended. An
additional FAQ can be found at http://home.earthlink.net/~altquot/
People at this newsgroup are happy to help, but in order to use time
wisely, it often makes sense to check elsewhere on the web first.
Since you may be looking for something that's already been answered,
try
http://groups.google.com/groups?hl=en&group=alt.quotations first
(check that you've selected "search only in alt.quotations")
There are other excellent quotations resources on the web... Among
them are these two:
http://www.quotationspage.com/
http://www.weeks-g.dircon.co.uk/these_you_have_sought_on_a.htm
Searching at http://www.alltheweb.com also frequently leads to
positive results.
Pictures of some of the regular posters can be found at
http://home.netcarrier.com/~conover/AQ/
Frank Lynch
The Samuel Johnson Sound Bite Page is at:
http://www.samueljohnson.com/
> - John Cage