have a looksy here: https://en.bitcoin.it/wiki/Bitcoin_Affiliate_Programs
also if my sclerosis doesn't betray me,there were several similar topics here on bitcointalk services discussion board,use search to find them
if I were you I would start with gambling or exchange sites affiliate programmes,you can put them on your blog or site or promote through ad networks
if you can generate traffic it is a whole different story:VPN,hosting,CPA offers etc etc.
some affiliate marketers are making hundreds USD daily
you have to do research and find the best ones by trial and errors,none in his right mind would give you working schemes like buy traffic here-use it here