1) If you have a factual question which can probably be easily answered by a
number of people, request that they email you the answer. Volunteer to post
a summary of the answers to the net.
2) If you know the answer to a factual question, and you know that it has
been previously answered, or is fairly common knowledge, email your answer,
possibly with a request for the questioner to post a summary to the net.
Hopefully, this will reduce repetitive postings.
Matt Seitz
se...@cory.berkeley.edu