Is the difficulty/utc/day calculator broken? I am on utc.pool.pm and at my hashrate should be getting +50 coins per day. I got about 30 in 24hrs. I know there is no way to know exactly, with fluctuating difficulty but it should not be that far off.
Pools have been going down off and on, whats your khash? I've only been netting about 25 or so at 680khash