This article attributes the current rage for Photoshopped crazy cat (or "lolcats") images to the popular blog, icanhascheezburger.com. This site has been a phenomenon in the world of blogs, exploding almost immediately from obscurity into one of the most visited blogs on the Internet and spawning a slew of, yes, copy cats.
The linked article talks to this phenomenon, but also asks if sites like this will become more and more scarce as the Web goes mainstream....
The striking thing about lolcats--besides its amazing fecundity and variety and the fact that, unlike a lot of Internet cat humor, it's actually pretty funny--is how little else like it there is online right now. The great, weird Internet meme, which once thundered across the Net in vast herds, is becoming surprisingly scarce, which may be why lolcats has a distinctly old-school, early 1990s, Usenet feel to it. It's not based on a Saturday Night Live sketch, and nobody's using it to get famous or sell anything. Yet.
I CAN HAS ENOUGH ALREADY?
Never! Sites like this prove that people never tire of eccentric, quirky and off-the-cuff material....something that mainstream has difficulty producing.