What are the major user stories in a sign-up service site?

A website that encourages users to sign up for a service often has different requirements and features than an e-commerce or content-based website. Here are some potential user stories for such a site:

For a visitor:

For a potential customer:

For a customer:

For a site admin:

As with other types of websites, the specific user stories for a service sign-up site will vary depending on its unique features and the needs of its users.