"Until now, haggadahs were basically one-sided," Yudelson said. "We want to make the point that Judaism belongs to Jews everywhere — and to illustrate how the Internet can help bring them together."

Visitors to the Haggadah browse explanations of the 16 sections of the Passover seder — celebrated this year on Wednesday, April 3 — and add their own commentary, from teachings of learned rabbis to family anecdotes, recipes and songs.

They can also read comments from all other visitors to the site, or create their own one-of-a-kind Haggadah composed of comments selected at random from contributors from Sydney, Australia, to San Francisco.

"It's the most Jewish of traditions to talk back to the text," said JCN writer Pamela Druckerman, "But now when you do so, the whole world gets to listen."

As part of its package of Passover features, JCN has also published "The Anonymous Haggadah," which synthesizes Passover rituals with the 12-step recovery programs. JCN also offers holiday games and links to other Passover resources on the Internet.

Generally, the JCN Web site (http://www.jcn18.com) offers online magazines, daily news, original feature stories, photo essays, interactive discussion boards and links to the latest in Jewish and Israeli Internet sites.

JCN also provides Web design and Internet consulting services to the Jewish community. JCN is a subsidiary of Advanced Standards Inc., a New York-based firm that develops online and World Wide Web solutions for businesses.