Position	Website	Change	Thumbnail
1	en.wikipedia.org - Wikipedia, the free encyclopedia	0
2	isbn.org - U.S ISBN Agency - Welcome to the U.S. ISBN Agency, the official source for ISBNs in the United State... Welcome to the U.S. ISBN Agency, the official source for ISBNs in the United States. No other source can assign legitimate ISBNs to US publishers. B...	0
3	abebooks.com - AbeBooks Official Site - New & Used Books, New & Used Textbooks, Rare & Out of Print Boo... AbeBooks is your source for Used, New, Rare and Out of print books. Find classic collectibles, rare signed editions, used textbooks, and inexpensive ...	0
4	isbn.nu - isbn.nu: search for books and compare prices ? fast!	0
5	myidentifiers.com - Welcome To My Identifiers | Bowker | Identifier Services	0
6	bowker.com - Bowker.com The world`s leading provider of bibliographic information management solutions designed to help publishers, booksellers, and libraries better serve th...	0
7	bookfinder4u.com - BookFinder4U - Compare book prices at 130 bookstores & Book finder for cheap books, discount boo... Compare Book Prices at 130 bookstores, book finder for cheap books, discount books	0
8	amazon.com - Amazon.com: Online Shopping for Electronics, Apparel, Computers, Books, DVDs & more Online shopping from the earth's biggest selection of books, magazines, music, DVDs, videos, electronics, computers, software, apparel & accessori...	0
9	isbnsearch.org - ISBN Search Find books easily using ISBN, title, or author searches. Search using ISBN-10 or ISBN-13.	0
10	biblio.com - Biblio.com: Search Used Books, Textbooks, Rare Books, & Out of Print Books from Independent Book... Biblio brings together thousands of independent booksellers worldwide to offer you over 50 million used, rare, out-of-print, signed and first edition ...	0
11	createspace.com - CreateSpace: Self Publishing and Free Distribution for Books, CD, DVD CreateSpace provides free tools to help you self-publish and distribute your books, DVDs, CDs, video downloads and MP3s on-demand on Amazon.com and ot...	0

I have no idea. Please, refresh tomorrow ;)

Site	Traffic	Engagement
abebooks.com	46.8%	0x
wikipedia.org	30.9%	0x
isbn.org	5.3%	0x
amazon.com	4%	0x
bookfinder.com	2.4%	0x
Other	10.6%	0x

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