BoingBoing brings our attention to one of the hidden features of Goodreads. Lots of people like to use GR's "shelves" feature to track the books they gave up on, and they frequently label their discard shelf with the name "abandoned".
Goodreads has collated those shelves and come up with a list of Popular Abandoned Books. Of the top ten titles on this list, I have finished two and abandoned 3:
While that's an interesting list, it's far from a comprehensive one.
I did some digging and found that this list does not take into account other discard piles, including the shelves DNF, DidNotFinish, etc. Of the shelves I found, the DNF shelf was the most heavily used and Did Not Finish the least, and no two lists had quite the same selection of titles.
In any case, if you are looking for the next book for you to give up on after 50 pages, you should check out these shelves.
Do you have a DNF shelf? (I would if I were more interested in keeping track.)