Also about Minifaucet, is it possible to make batch payments to minimize the transaction fees?
Other faucets have done it before. If you look a few pages back I supplied some PHP code for making batch payments using Blockchain.info's api. If you can implement that with a cron job, you should be able to get that working.
If you want any other help with it, I can try to code it for you for a small price.
I think I successfully did it..
And is there any faucet that use Google Adsense? I want to take example from them.
A large majority of faucets use Google Adsense nowadays,
http://www.freebitco.in and
http://www.moonbit.co.in being two of the main ones. If you look on the Faucetbox or Paytoshi faucet list on their site a large majority will be using Adsense on their sites.
It's a risky game to play, but can be very profitable.
I think I'll stay off from adsense while starting. Yeah, I didn't want to risk my account.
Also I suggest to not trusting free version of hostinger.
I ever use idhostinger (It's the Indonesian hostinger group, so I can assume they are same) to run a faucet while I testing with it. You can't generate a lot of traffic because they limits the visitor, then they'll redirected into their error cpu_exceed page.
After a month they suddenly suspended my host (I already have a lot of modified scripts there) and I can't access my file anymore and I forgot to create a backup before. They're worst in my opinion.
Don't know about the paid hosting, but the free version already make me want to stay away from them. Good things I almost give my money to them