I tried out Mechanical Turk, and it's pretty neat.
When I got to the end of the task creation process, it showed a window with realtime updates in it. That's neat. I wonder why it's realtime? I thought it would be more of a batch process where I'd come back and check it in a few days.
Instead, as I watched, people picked up and finished all 48 of my tasks within a few minutes. The realtime nature was a surprise, and pretty neat.
It was more expensive than I expected because I accidentally had two workers perform each task, and I set the pay rate pretty high. Even so, it was less than $10. I'm going to use this more in the future and try to tune my requests a little better.