Starting an online business
What state should we incorporate in?
Do we need to collect sales tax from people in different states for their membership?
Should we use an online service to help us incorporate?
I have many questions, but I guess this is the best place to start. Thanks in advance for the help!
Since your business would not sell tangible goods you would not need to collect sales tax from your clients. As far as state of formation goes, I would recommend you to read our article dealing exactly with this topic - how to choose the state of registration for various types of business: Choosing Where To Incorporate.
Finally, there are many services on the Internet that offer help registering your business. Since we offer that service ourselves through our website MyUSACorporation.com I would abstain from giving any opinion on the level of service provided by our competitors, and instead would like to invite you to consider using our service.