With the addition of several new search sources, viaLibri.net has laid claim to the title of "the world's largest internet marketplace for old and rare books. ... Searches performed on viaLibri will now reach the combined inventories of over 20,000 online booksellers with combined inventories of over 150 million books. The most significant increase in this number comes from newly enabled access to used and collectible book listings from five different Amazon sites. Books from the American, Canadian, British, French and German versions of Amazon are all now included in viaLibri search results."
Founder Jim Hinck says of the additions "From the beginning, our goal has been to make viaLibri the most comprehensive internet resource for anyone searching for old and rare books. With the addition of these four new sites we are confident that we have achieved that goal. The collectors who use us regularly should be pleased to see their nets now cast even further across the internet. But even those who are just looking for a reasonable copy of an out-of-print book will find that viaLibri now gives them the most comprehensive results available on the internet. Or anywhere else for that matter."
I've begun using viaLibri regularly now instead of AddAll, and these improvements can only serve to make an excellent site even better.