At this time of year, biochemists, like millions of other people, lightly turn to thoughts of shopping. Whatever your opinion, the reality of Christmas shopping is invariably a hassle. Although a large proportion of people in industrialized countries now use the Internet, far fewer, it seems, are willing to use it to shop.
Security is obviously a worry for many.
However, few people think twice about giving out credit card numbers to theatre box offices, airlines, etc. over the phone. For some reason, we are more reluctant about giving away credit card numbers when asked to type them into boxes. Almost anything can be available this way, if you have the means to pay. The ones mentioned here fit in to the latter category. Let's be serious for a moment, and start with books.