It's a good bet that cyberspace will be reeling with Oscar gab during tonight's Academy Awards ceremonies, but there are also some on-line events officially linked to the awards. Here's what they are and how users can sign on:
* America Online: Conference hosted by ABC representatives backstage relaying pressroom activity. An academy historian will offer historical prospective. Trivia contest.
Keyword ABC Auditorium . Click on Coliseum . Starts 5:30 p.m.
* America Online: Instant photos and videos direct from the Shrine Auditorium.
Keyword Oscars . Click on Screening Room . Starts 5:30 p.m.
* CompuServe: Syndicated columnists Marilyn Beck and Stacey Jenel Smith backstage will take questions for winners electronically from CompuServe members.
Go Convention. Starts 6 p.m.
* World Wide Web (the Internet): The academy will continuously update its web site, starting at 6 p.m.
The Location is: http://www.oscars.org/ampas/
* Prodigy: Nothing live during ceremony, but members can visit the academy's web site through Prodigy's World Wide Web browser. Jump Web . Starts 6 p.m.