"Unfriend" is the Word of the Year from the Oxford University Press, beating out nominees like paywall, funemployed and sexting (OMG OUP!). Adrian Chen points to the last five winners -- 2005: podcast; 2006: carbon neutral; 2007: locavore; 2008: hypermiling -- and concludes "these are all just hacky trend pieces from that year." Well, yes. You have rediscovered the purpose of electing a word of the year.
Merriam-Webster's words of the year are also verbal synecdoches of the year's trends -- bailout in 2008; subprime in 2007; 9-11 in 2001 (I mean, come on, that doesn't even have letters in it). At least M-W samples equally from politics, technology and pop linguistics-- Not! was 1993's choice. Oxford is a straight-up barometer of tech trends. Its words are basically just a proxy for the year's biz-tech advancements.
On a closing note, I'd like these organizations to offer two words of
the year: One that everybody uses, and another that everybody should use. My nomination for 2009 (and really, the whole decade) is portmanteau,
which is a word that blends two words. Increasingly the English
language is coming to resemble the fundamental law of matter that mass
exists in a closed system and nothing is created or destroyed, only
reassembled. Sexting, blog, funemployed. The sporkification of the English language knows no end.