Here is the list of adnetworks that accept faucet sites but doesnt payout in bitcoin.
1 Popads.net (popups)
2 Sisterads (popups)
3 Propellerads.com (popups)
5 Adsal.net (popups)
8 Ad-Maven (popups) (I have used it . Their rates are good)
9 voltads.com (This network is very new. They accepted my site. Is CPM based. It increases your CPM rate daily by 0.02 USD. I dont know whether i will end up as scam. You can try by placing one ad in your site.)
If there is any other network please list out here so that it will be usefull for new faucet owners.