There are many sites that give btc for adding their link to signature..i use scratch ticket but don't know if it is the best..
I like PrimeDice. That Stunna - who runs the campaign - is a legit and honest man. He runs this thing for years now, I guess and always pays the amount he promised on time. I'm new to the campaign, but people are only recommending his campaign. He'e legit, man!