It is a little suprising.
Merriam-Webster's Words of the Year 2004
Based on your online lookups, the #1 Word of the Year for 2004 was
Blog noun [short for Weblog] (1999) : a Web site that contains an online personal journal with reflections, comments, and often hyperlinks provided by the writer
2. incumbent
3. electoral
4. insurgent
5. hurricane
6. cicada
7. peloton : noun (1951) : the main body of riders in a bicycle race
8. partisan
9. sovereignty
10. defenestration
http://www.m-w.com/info/04words.htm
related: http://news.bbc.co.uk/1/hi/technology/4059291.stm