America Online* Monday, 6 p.m.: Lawrence M....

America Online

* Monday, 6 p.m.: Lawrence M. Krauss, a theoretical physicist and author of “The Physics of Star Trek,” answers questions about warp speed, holograms and other “Star Trek” terms. Keyword: Centerstage

Prodigy

* Today, 3:30 p.m.: Douglas Adams, author of the cult classic “The Hitchhiker’s Guide to the Galaxy,” in a chat from England. Jump: CHAT

Internet

* The new Iguide service from News Corp. offers poetry readings stored in wave audio format, as well as news, entertainment, sports and more than 20,000 reviews of other Websites. It is at https://www.iguide.com/

* Today, 6 p.m.: Meet and chat with actor Matt LeBlanc, star of the upcoming film “Ed,” at https://www.mca.com/universal_pictures/ed/

* The Orange County ArtsNet has announced a new Website covering the arts community. You can find monthly performance schedules and synopses, as well as links to theater, orchestra and museum event listings. It is at https://www.ocartsnet.org/

Sources: Times, wire and company reports