Not OP, but at my alma mater, NTNU in Trondheim, Norway, Amazon was definitely common (at least in geeky circles) in 1999 - lots of textbooks were cheaper than at the campus bookstore, at least until Amazon purchases became widespread enough to hurt their bottom line.
I think I may have created my Amazon account in 1998, but my first order was placed in January 1999.
I think I may have created my Amazon account in 1998, but my first order was placed in January 1999.