Pinterest, a social pinboard site, has in the social networking world. Its users, especially women, have flocked to the site to use what basically is a shareable scrapbook. Users are able to create different pages of interest by pulling in images from around the Web.

If someone spots an image - of a cute puppy, shoes, an inspiring quote or an interesting recipe - she can use a plug-in to grab it and add it to her board. Then people who follow that person can see her pinboards, repin their favorite images and comment on them.

" is definitely making a move toward Pinterest, while also finding a way to engage more businesses," said Dan Olds, an analyst with The Gabriel Consulting Group. "To me, they're looking to take some of the Pinterest mojo and see if they can mold it into something that will result in more business-friendly activity and get them more advertising dollars."

Olds said Facebook may have two motives. "The first, and most important, is to show business users that Facebook is a valuable resource and their best value in online advertising. Facebook also would like to blunt Pinterest's growth before it becomes a real challenge to Facebook's business community ambitions."

One of the first things Facebook did with this test was to pull in businesses to help them gauge its effectiveness.