We were delighted to find a “Shareaholic” entry in the Urban Dictionary the other day!
Shareaholic
noun, pl. -shareholics
Individual addicted to posting online everything they see, experience or think. One who compulsively posts their whole life online on Facebook, Twitter, Digg, etc.
She was such a shareaholic she found herself thinking in Facebook status updates, and felt a deep sense of well-being when she discovered Shareaholic.com