During oral arguments, the California Supreme Court signaled that it doesn't intend to make untold numbers of Internet users liable for every allegedly defamatory posting on the Web. A state appeals court held that the federal Communications Decency Act didn't immunize a women's health advocate accused of posting an allegedly defamatory opinion piece with two online newsgroups. Dozens of amici curiae -- such as Amazon.com and Earthlink Inc. -- argued that the ruling could chill free speech.