Things are about to get a bit meta:
A book based on a Twitter feed that compiled tweets where people included the phrase "working on my novel" is available to buy (in print!).
The appropriately named Working On My Novel is the work of American artist Cory Arcangel who specialises in subverting digital media, such as splicing YouTube clips of cats on pianos to perform entire symphonies, or modifying a Super Mario Bros NES cartridge so that the only thing visible in the game were clouds.
You can find out more information about Working On My Novel (where all of tweets were used with the permission of the original authors) here.