Here is an online book swap service: ReadItSwapIt, a UK innovation.
How do you swap books via this system?
The swap process works in the same way that you'd normally swap something. You find something you like, you ask to swap, another ReadItSwapIt members chooses something of yours and you exchange the goods. The only difference with ReadItSwapIt is that the swaps are done over the internet.
Step 1 - You select the book that you would like from The Library. Many books are available from more than one person, so choose the person you like the look of. Click 'Swap with this member'.
Step 2 - The ReadItSwapIt member who owns that book receives an email saying that you want to swap.
Step 3 - The other user logs onto the site and views your list of books. If this user finds one that he or she likes, he or she will confirm the swap. He or she can also reject the swap request at this point. If the swap is confirmed, the other user will be able to see your postal address.
Step 4 - You will receive an email saying the swap has been confirmed, along with the address to which you need to post the book.
Step 5 - When the books are received, each person logs on to say they have received the book and they rate the other person.
Is there a limit to the number of books requested?
Yes, the number of books you can request from other users depends on the amount of positive feedback you have from other users. This is a security measure put in place to prevent abuse by users who do not have much feedback – a little like libraries which prevent you from borrowing lots of books the first time you go there.
Check it out here: http://www.readitswapit.co.uk/Questions.aspx?Section=Swappingbooks
COMPOST list of BOOK SWAPS around the WORLD
ABOUT BOOK SWAPS