World-Wide
BookFinder.com - book price comparison
FetchBook.info - 'new & used books, find the lowest price' book price compare
ABE Books - large database used by many bookshops & dealers
AddAll.com USED Books - another search
Half.com - large selection of used books, many at very good prices
Alibris - large database of many books

ELibron.com - produce reprints of many out-of-prints books
AstroLogos Books - reprints of hard-to-find books

Biblion
ILAB-LILA ( = The International League of Antiquarian Booksellers / La Ligue Internationale de la Librairie Ancienne)
Tom Folio
AntiQbook (Europe)
BIBLIOdirect

Used Book Central
ABookSearch
Biblio-Direct
World Wide Web Bibliophile.net
Bibliopoly
Book Avenue
Wanted Books
Booksearcher.org
ChooseBooks

UK (-oriented)
UK Bookworld
Ardis Books
Cover to Cover

Europe (-oriented)
Galaxidion [France] - march� du livre ancien ou �puis� sur Internet
Bouquinerie L'Ex-Libris [France] - livres anciens et d'occasion
ZVAB Booksearch [Germany, Austria, Switzerland] ( = Zentrales Verzeichnis Antiquarischer B�cher)
Antikvariat (Antiquarian Books in Scandinavia)

USA (-oriented)
Powell's Books

English language
D.K. Agencies [India]
Sundeep Prakashan
Saujanya Books

Khemraj Shrikrishnadass / Shri Venkateshwar Steam Press, Bombay
OscarIndia Books
Manohar
Vedams Books
Giri Trading
Granth Books (India)
Indian Books Centre
Bagchee books
Chetana
K.K. Agencies (India)
R & R Books Distributors (India) PilgrimsBooks (Varanasi, India & Kathmandu, Nepal)

Indus International
Books & Periodicals Agency

India Club [USA]
Khazana [USA]


Hindi
Hindi Book Centre
Book & Periodical Agency
India Club [USA] - hindi section
Arpana Publications - hindi books

hindi granth karyalay