I know I am late to the LOL Cats thing, but they were just do damn cute that I had to share it. LOL Cats, I think that is the official name, was kinda hard for me to explain so I found here is the Wiki for it:
LOLCatis an image combining a photograph of an animal, most frequently a cat, with a humorous and idiosyncratic caption in (often) broken English—a dialect which is known as "Kitty Pidgin", "lolspeak", or Lolcat. The name "lolcat" is a compound word of "LOL" and "cat". Another name is cat macro, being a type of image macro. Lolcats are created for photo sharing imageboards and other internet fora. Lolcats are similar to other anthropomorphic animal-based image macros such as the O RLY? owl.
Go check them out.