A SHORT(hand) POST! By Kip.
When looking to express humor in Japanese, the shorthand "wwww" is commonly used.
Whereas English speakers use LOL or ROFLCOPTER to express a variant of laughing, wwww is meant to be a shorter version of the Japanese word for expressing laughter, "warau".
One can also use capital Ws or extend the W-chain if something is very funny.
For example, take a look at this excerpt from Chatango:
As you can see, Chatango also
THCTriton: that engrish pic was so funny
(Kip has an old .doc file on his computer of a dictionary of internet shorthand if anyone ever needs to see it...)