"[Virtual Assistants] VAs —that is, independent contractors who handle clients' noncore support needs via e-mail, fax and phone—go far beyond the traditional role of temporary employees or even business support services. In fact, as entrepreneurs themselves, they have vested interests in their clients' success. Typically, they become integral parts of their clients' businesses, handling a wide range of duties like basic administrative support, accounting services, human resource assistance, concierge services, collections, sales and marketing support, research and more. They generally charge by the hour: anywhere from $20 to $45. But on the plus side, you pay only for the time they actually spend working for you, and you don't incur any other employment costs." -Entrepreneur Magazine, July 2000

Informative Articles and Research:

"Do the Laundry, Walk the Dog" Entrepreneur Magazine, July 2000
"Do you need virtual assistance?" CNN.com, August 21, 2003
"Virtual assistants - a luxury you can afford" Yahoo business