Forming an S-Corporation for an Online Business
Yes, an S-Corporation would be a fine type of entity to form for your business. But, before incorporating, consider some of the limitations of the S-Corporation, such as, for example, the limited number of shareholders allowed and limits on transfers of ownership. It may be that a better way to go would be to form an LLC.
Our company is an online-only business and we have operated successfully as an LLC for several years. If you want a better-known example, Amazon is also an LLC (although they do own a corporation by the same name too).