'share this' social media sites

i wrote a quick post about this exactly a year ago (i’m writing this on 04/29) and in this past year social media has exploded even more. twitter gets a billion tweets a day (please RT this lol), facebook is dominating the interweb and there are more social sites than you can stuff in a jquery drawer script. click on the photo to see the big picture.

i mean, hey we have a ’share this’ function, but we didn’t throw the kitchen sink in there. i won’t embarrass the site that i found this lot on, but does anyone really share on ‘html validator‘?