In Universal Communication Systems v. Lycos, a company who had allegedly been victimized by defamatory statements on a message board regarding the value of its stock sued Lycos, which operated the board. The message board allowed users to post comments with minimal moderation, and no one from Lycos was responsible for the allegedly defamatory statements.
Examining the impact of Sec. 230 on this case, the court noted that “Congress intended that, within broad limits, message board operators would not be held responsible for the postings made by others on that board,” adding that allowing bloggers and message board operators to be sued for the statements of commenters on their sites would have an “obvious chilling effect” on speech. Accordingly, the court dismissed the complaint against Lycos.
That’s good news! Here’s the original decision (.pdf) format.