The personnel structure and management system I would not refer to distinguishing characteristics (i.e. sufficient conditions, and necessary difficult). Electronic communication is rather essential, but not sufficient. Anyway, in my opinion, sufficient conditions to consider the businesses online business, in addition to the main channels of interaction with contractors, no. I do not differ from normal companies, e.g., mail-order trade catalogs/"teleshopping" or working in the market of content for mobile phones (without Internet channels to present them is difficult, but possible).
