The increasing size of messaging communities increases the risk of inf
ormation overload, especially when group communication tools like mail
ing lists or asynchronous conferencing systems (like Usenet News) are
used. Future messaging systems will require more capable filters to ai
d users in the selection of what to read. The increasing use of networ
ks by non-computer professionals requires filters that are easier to u
se and manage than most filtering software today. Filters might use ev
aluations of messages made by certain users as an aid to filtering the
se messages for other users.