By Katharine Mieszkowski: Details about the New York Times' plans to charge readers of its Web site for access are trickling out. In a conference call to discuss earnings today, CEO Janet Robinson described two possible payment scenarios -- a "meter model" or a "Times club membership."

Notably, the two models the Times is considering seem diametrically opposed in their approach. "A metered model, in which readers would be charged based on how many pages they view, would effectively create a negative incentive for readership, depressing the value of the paper's online advertising," writes Jeff Bercovici on AOL's finance site. "A membership model, on the other hand, would lavish perks on the most enthusiastic readers -- perhaps invitation-only live events, or online chats with op-ed columnists."

The Times reported that Internet advertising revenue in the second quarter fell 15.5 percent compared to the same period a year-ago, according to Editor and Publisher. But the Internet now accounts for about 21 percent of the Times' advertising revenue, up from about 18 percent last year.

CEO Robinson hinted that the newspaper's Web site might charge for access as soon as this fall. As we've noted before, many other large news organizations, such as Rupert Murdoch's News Corp., are flirting with introducing pay walls, too. They all might benefit from reading Jeff Sonderman's short history lesson about the price of newspapers at NewsFuturist.