At the leading edge of cyberspace, protestors today broke in to the etoys web site. Supporters say etoys fell victim to a virtual sit-in. But critics of this internet tactic have a different term for it: Cybersabotage. Steve young reports. >> eToys which won a fight over web address faces a protest over the outcome from an outfit called our team arc [R-T-Mark]. It's the same group that takes responsibility for hammering the world trade organization web site. It wants web visitors to click on a link that swamps etoys web servers just as sanda's helpers otherwise known as parents are trying to make christmas purchasers, etoys says the sit-in has bombed but it is tough locking on and the purchase wouldn't go through. Meanwhile using other toy sites was a snap. >> Nobody was having a worse response than etoys were. Nobody was affected which is not the case at the moment. Legal experts say it's a close call whether their tactic constitutes legitimate protest or illegal denial of computer services. >> Everybody is entitled to free speech, but the old saw goes you can't walk into a theater and yell fire, you can't picket a store which is a form of free speech and yet bar people from entering .....