The Cutting Edge: COMPUTING / TECHNOLOGY / INNOVATION

AMERICA ONLINE

* Sunday, 5:30 p.m.: Artist Al Hirschfeld, best known for his caricatures and cartoons with the name “Nina” hidden in them, makes a rare on-line appearance in a conference. Keyword:Centerstage

* Monday, 5 p.m.: Dave Dorman, president of Pacific Bell,and Michael Fitzpatrick, president of Pacific Telesis Enterprises, discuss the competition with cable TV companies and long-distance carriers in an on-line chat. Keyword:Centerstage

COMPUSERVE

* Thursday, 5 p.m.: Former Dallas Cowboys coach Jimmy Johnson talks about his career. Go CONVENTION

* Thursday, 6 p.m.: Two-time space shuttle astronaut Janice Voss answers questions about space flight. Go FLATODAY

* Monday, 6 p.m.: Join a conference hosted by the Universal Pilot Application Service to discuss careers in the airline industry. Go CONVENTION

PRODIGY/TIMESLINK

* Thursday, 6:30 p.m.: Actress Susan Lucci, who stars in the daytime soap opera “All My Children,” in a Prodigy on-linechat. Jump: CHAT

INTERNET

* Tuesday, 4 p.m.: Comedian Paula Poundstone in an on-line chat hosted by Ticketmaster Online.Http://www.ticketmaster.com/

* Today: WebCrawler, a service that searches and catalogues Web sites, unveils an interface designed for easier access to its index of more than 60,000 popular Web locations. Http://webcrawler.com/

Sources: Times, wire and company reports