On-line ordering services featuring books; on-line trading services in which participants post books to be auctioned and bidding is done via the Internet; on-line exchange services, namely, bartering of books for others; providing an on-line searchable database featuring used books being offered for sale and buyer/seller contact information

On-line ordering services featuring books; on-line trading services in which participants post books to be auctioned and bidding is done via the Internet; on-line exchange services, namely, bartering of books for others; providing an on-line searchable database featuring used books being offered for sale and buyer/seller contact information