I belong to several different PTC, GPT, PTR, and survey sites (and even one "paid to do nothing" site), although FC is by far the best. I've often felt that esp. when it comes to making money online on these type of sites, it's actually good to be involved with several since each one may not pay out a bunch, but when you are involved with several sites, then you'll tend to pick up a few bucks every month. As for trusting sites, I usually don't trust any site until I've been with them for a while. I always start off as a free member and wait until I've been paid before I even think about paying for something on the site. And even when I do pay for something, I try to first pay for it out of the earning made on that site. At the very least anything I pay for is from my paypal account so that I'm keeping my money earned online for online purchases. Right now I'm involved with only one site that I'm somewhat nervous about... I was paid as a free member once but then during Xmas they ran a great promotion (basically about $15 for 2 years upgrade plus a bunch of "rented" refs) and have since been paid a 2nd time as an upgraded member. But I am still in the hole with them which is why I'm still a little nervous. But then again, $15 isn't much to lose if the site does go under before those 2 years is up. There are a few other sites that I've been with for quite a while and never feel worried about spending money with them. In one case, since it's a PTC site, I have sometimes spent my earning in purchasing ads to try to get referrals for my other sites.