Evan Williams cuenta en su blog el origen de la palabra:

You should be aware that Blog was originally devised by British fans in the 1950s. There were two versions. A Liverpool fan named Peter Hamilton came up with the recipe for Blog Mark I, which consisted of "a brandy and egg flip base, to which was added black currant puree, Alka Seltzer, and Beechan's Powder. It effervesced." A second, simplified version (Blog Mark II) was produced by hotel barmen at the first Kettering Eastercon (1955) and consisted of "a half-pint of cider and a measure of rum." Anybody know what `egg flip' and `Beecham's Powder' are? (Quoted material taken from p.168 of A WEALTH OF FABLE, by Harry Warner, Jr.)

Es decir, el primer uso del término blog fue para denominar un cocktail. Y por eso estamos aquí. La historia estaba escrita, sólo hacía falta saber leerla ...

via BoingBoing