Readers Refuge
Specializing in fiction, art, business, children's and south-east Asian authors. Australian site delivers internationally.
http://www.readersrefuge.com.au/

ReadingMore
Includes new and used books, with subjects such as history, science fiction, poetry and romance.
http://www.readingmore.com

Readings Books and Music
Variety of poetry, non-fiction, fiction, and psychology.
http://www.readings.com.au/

RJ Communications
Online bookstore featuring works of independent authors and small press publishers. Readers Radio feature allows you to hear interviews with authors before buying.
http://www.justbookz.com/

Robby's Book Shelf
General book store.
http://www.robbysbookshelf.com/

Roland Oliver
Publishers book sales.
http://www.rolandoliver.co.uk/

Ross and Perry
Publishers of government reports, sellers of many books.
http://www.rossperry.com/

The Red House
Offers online ordering of books listed in several British catalogues. Delivers internationally.
http://www.redhouse.co.uk/