Basing its decision on the frequency of its usage, the Oxford Dictionaries has announced “selfie” as the word of 2013. But interestingly, they trace the word’s first known usage to 2002 via an online forum in Australia:
2002 ABC Online (forum posting) 13 Sept.
“Um, drunk at a mates 21st, I tripped ofer [sic] and landed lip first (with front teeth coming a very close second) on a set of steps. I had a hole about 1cm long right through my bottom lip. And sorry about the focus, it was a selfie.”