Are they schemes? Does anyone actually do this?

I am interested, not in a get rich way, but a make a little spending money and fill some time.

I am so sceptical about it all and DH just says I need to take the chance, but when you have to pay up before you get any details I don't like it. I have rang a few places asking for contacts (email) of people I could get reccomendations from, but how do I know if I can trust these people and that they are not just all part of the scam too.

Wow, I am really talking myself out of it now.

So any advice, stories of failure or success, help would be appreciated.

TIA