7) Adolescent nerves at first porn purchase
The ubiquity of free, hard-core pornography on the web has put an end to one of the most dreaded rights of passage for teenage boys – buying dirty magazines. Why tremble in the WHSmiths queue when you can download mountains of filth for free in your bedroom? The trend also threatens the future of "porn in the woods" – the grotty pages of Razzle and Penthouse that scatter the fringes of provincial towns and villages.
Websites may have helped spread the word about dogging, but the internet offers a myriad of more convenient ways to organise no-strings sex with strangers. None of these involve spending the evening in lay-by near Aylesbury.
45) Prostitute calling cards/ kerb crawling
Sex can be marketed more cheaply, safely and efficiently on the web than the street corner.