Books, music, and videos
–Most visible electronic commerce examples
–Amazon.com Web-only retailer originally sold books
•Evolved into general retailer
–Barnes & Noble, Blackwell’s, Books-A-Million, Powell’s Books
•All adopted Web catalog revenue model
–CDnow Web-only online music store
•CD Universe copied CDnow approach
–Tower Records, Sam Goody retail stores
•Created Web sites to compete with CDnow