As usual the Bitcoin Zebra faucet will continue to pay out up to 1000 satoshi every hour.
However for the next 24 hours (starting from 2014-04-23 00:00 UTC) the average payout will be increased from 340 satoshi to 600 satoshi!
So each time you visit the faucet during this 24 hours you will have a 50% chance of receiving a payout of either 200 satoshi or 1000 satoshi.
(Note: Referral commission will continue to be paid on the increased faucet payouts at your usual commission rate and the Zebra Multiplier will continue to give you a chance of multiplying each faucet payout by up to 1000x)