A recent American Staffing Association article noted that staffing is a great way for working mothers to get the flexibility needed:

Staffing Offers Opportunities for Working Mothers

Women now represent the majority of the U.S. work force, according to the U.S. Bureau of Labor Statistics. Millions of these women are mothers who have developed unique skill sets by managing their success at home and at work. Niche staffing firms say that many working mothers make good employment candidates for businesses looking for access to talent and work force flexibility.

"There are a lot of talented mothers out there who have much to contribute to the workplace," said Mommy Wars author Leslie Morgan Steiner during an interview on NBC's the "Today Show."

In that same interview, Allison O'Kelly of Mom Corps added that many mothers come with a robust work history. "These often are women who have worked five, 10, or 15 years in a professional environment and have amazing skills."

"Mothers make fabulous employees because they're bright, they know what they are doing, and they are used to wearing many hats—their ability to multitask is invaluable," said Jill Ater of 10 til 2 LLC, a part-time placement staffing firm. She added that mothers who work on temporary or part-time bases offer businesses expertise on an as-needed basis—something that is favored by companies interested in maintaining work force flexibility as they assess the stability of the current economy.

Mothers value that flexibility too. "The main benefit mothers are looking for when they come to a company like ours is flexibility," added Ater, whose average employee is 43 years old and has children in elementary school. "The reason we started this business is because we are moms. We saw the need for flexible jobs that would allow us time to take care of our children. We get it because we are them."