It seems like one of the things that has been cropping up in conversations on the boards a lot lately is which business structure (Sole Proprietor, LLC, etc.) is best to operate under as a virtual assistant.
I found a great resource at NOLO that I think anyone struggling with this question will find useful.
LLCs, Corporations, Partnerships, etc.
LLCs, corporations, partnerships, and sole proprietorships are different ways to structure how you own your business. Here you'll find information about each type of business entity and the pros and cons of each.
The site is full of relative information - just a few of the articles that might be especially useful:
Chart: Ways to Organize Your Business
View in chart format the pros and cons of the different business entity forms--corporation, partnership, LLC, S corporation, sole proprietorship, and more.
Learn About Business Ownership Structures
Learn about the differences between corporations, LLCs, partnerships, and sole proprietorships.
Choosing the Best Ownership Structure for Your Business
Understand what you need to think about when choosing the best ownership structure for your business.