Most have chosen to provide back-end scheduling services that the client company deploys on its site.

CNN: Analysis: Brace yourself for the e-scheduling revolution

Lowe adds that e-scheduling makes it easier for small businesses to conduct high-end loyalty-marketing campaigns, for example, by sending out e-mails (perhaps with discount offers) to customers who haven't made an appointment in six months.

CNN: Analysis: Brace yourself for the e-scheduling revolution