MyPaidClicks is also worth checking as it pays standard members within 5-7 business days while premium members get paid within 24 hours.
Here are some of those I am still working on and have paid me at least once, although these don't pay instant (in alphabetical order):
Clixsense (paid many many times)
IsabelMarco (paid twice)
MakeMyBux (paid twice)
ClickMyBux (paid once)
Happy Clicking everyone!