Berkeley Systems' beZerk site, the free online gaming site featuring You Don't Know Jack: The Netshow, has logged its 500,000th player. The site has been running since December. As soon a Berkeley can figure out who the lucky gamer is, he or she will get a $500 prize along with a gift pack. Upcoming plans for beZerk this spring include awards of $200 gift certificates from Tower Record, airline tickets, running shoes, and more to contestants playing the You Don't Know Jack Netshow from Windows 95 systems. April's high scorers in both Jack and Jack Sports will be awarded a $2,500 prize. Also on the prize heap will be copies of the upcoming You Don't Know Jack Movies.