Some are, yeah. I started my journey in making money online by doing the surveys on http://www.cashcrate.com. I made a whopping $40 in a month's work. It's funny thinking about it in retrospect. Now I can make $40 without basically doing much of anything online.
Paid to Click can be two things. Advertiser pays PTC site PTC take a cut and pay members Advertiser pays PTC site PTC take everything and dont pay members =) i use a PTC site and just click while i post and read on here.