Are these PTC sites/ survey sites for real?

Yes they are real, as I am a member of some and I have been paid by them. I don't make a lot of money, but it all adds up in the end. Sure, there are scams out there, and I have been scammed by some, but not the ones I am doing. I am also a member of one survey site that has consistently paid me after completion of the surveys. The survey site is pine cone research. I am so happy that I am a member of that site as I do enjoy doing the surveys, and getting paid for them. All, that I do is free, as I don't have to invest in them in order to do them, and that is the best part, besides getting paid. Good luck to you and happy mylotting.