I've been using the website firefaucet for awhile now. It is one of the few that I visit on a daily basis. Besides the tap, you may also take surveys, view commercials or run the autofaucet.

What is firefaucet?

This website works like an automatic faucet, it permits you to routinely choose a couple of crypto currencies at one time! 

An enterprising new referral gadget

Currently, firefaucet, has changed their referral system and you now get 20% of all of your referrals revenue.
If you've yet to sign up, please, consider doing so here; My Referral Link