There are the society pages, the wedding pages, and now the divorce pages.

Courtesy of Arianna Huffington and Nora Ephron, two women whose own marriages dissolved in public fashion, The Huffington Post is set to begin on Monday a section devoted exclusively to the subject of failed nuptials.

“My theory is that marriages come and go, but divorces are forever,” said Ms. Ephron, the author and screenwriter who wrote the novel “Heartburn,” a semiautobiographical account of her strained relationship with the journalist Carl Bernstein. The two divorced in 1979.

“People who are divorced have endless problems,” Ms. Ephron added. “There are financial needs and legal difficulties. Grooming is an issue, because they’re constantly having to remake themselves. So there’s an enormous service area.”

Ms. Ephron, who is an occasional contributor to The Huffington Post (“I think I’m called editor at large, or something like that,” she said), will help inaugurate the section with an excerpt from her new book, “I Remember Nothing.”

Other parts of the section, called Huff Post Divorce, are expected to include advice columns by lawyers, financial experts and psychologists; news on celebrity divorces; and a forum for readers to discuss their own divorces.

Ms. Huffington, who is divorced from former Representative Michael Huffington of California, said an important topic of discussion on the site would be parenting after divorce. “Having been divorced with two daughters, I’ve seen how easy it can be to destroy their lives if you let your feelings get in the way of doing the best thing for them,” she said.

Though the founding members of the site are women, there will be content directed at men, said Willow Bay, the editor who oversaw the section’s development. “We have some lawyers lined up, dads who are new to the single dad thing, even a rabbi,” she said.

Pointing to the vast sector of the publishing industry built around weddings — engagement announcements in newspapers, bridal magazines and the like — Ms. Ephron predicted that Huff Post Divorce would generate a lot of interest from readers. “If you can make an entire industry from people who are interested in this topic for a year, imagine what you can do with people who are stuck with divorce for life.”