Here is my recent favorite joke going around on Japanese Twittersphere.
How to recommend twitter:
to British "gentlemen would do Twitter"
to German "the rule says you are supposed do it"
to Italian "beautiful girls are doing it"
to American "you will be a hero if you do it"
to French "don't do Twitter"
to Japanese "everybody is doing it"
BTW, with Kanji (Chinese characters), we can compress all above contents into 140 characters. Power of kanji charcters!