Sometimes logos changes slightly each time, and the change is so not noticeable that over the span of a few years we don't even notice. A few years later we look back in time and are like: "Woah! that looks so old skool!"
As for Omnimaga logo, it changed completely between 2001 and 2004, but after 2004 it didn't anymore
I wonder about Cemetech... it would be interesting to compare each site logos over the time.
EDIT: Here we go. My favorites are the 2002 and 2008 ones.
2000
2002 (?)
Late 2005
Late 2006
Early 2007 (Same as in 2005)
Late 2008
EDIT: Now Omnimaga logos, aside from calc ones, just for fun:
September 2001
September 2002
February 2004
