I'm starting my new website and want to monetize it by bitcoin. I've googled some affiliate programs and some ad networks, but don't know where to start or which one is trustworthy. How is your experience with these services? Which ones have a better reputation?
Bro It Depends Upon Your Website If you are Starting a Bitcoin Related Website then I suggest You to Join Some Ad Networks that Accept Payments Via Bitcoin and If You are Starting Some Other Type Of Website then Its Your Choice....
But I Suggest You Some Ad Networks:-
1) Coinad.com
2) Coinmedia.co
3) A-ads.com
4) Google AdSense......
This is a big list of good recommendation to OP, but in addition to that, I will suggest that one should consider going for affiliate marketing. Affiliate marketing is really worth it if you could find good time to promote other peoples products. The earning potential is really very high, that too simply passive way. Just give a try.