A play on words, it refers to electronic retailing. An etailer leverages electronic media and Internet technologies to sell goods and products online. Many etailers do not have a brick-and-mortar counterpart. Etailing is considered a B2C form of e-commerce.
For a discussion as to why "etailing" is not spelled with a hyphen and why "e-commerce" is, check out our e-mail definition.
NetLingo Classification: Online Marketing