Hoax: Girl quits job using dry erase board
TechCruch broke the story and then followed up with a well done article about the fact that it was a hoax.

Girl quits job on Dry Erase Board Hoax
Who is this mystery girl? Elyse Poerterfield an actress in Los Angeles.
Check out the TechCrunch story HERE
Check out theChive.com post admitting the HOAX HERE