Or if you don't like making a website but you can share links in some way you can also try adfly (
http://adf.ly/?id=620197 - referral link,
http://adf.ly/ - non referral link). There are also alternatives to adfly that might pay better or something but I went with adfly because I know they're quite reliable.
The way I make money with adfly is by offering people a "sponsored link" when they want to download something I made (mostly from scripts I write for a game). But you can make money from adfly in a lot of ways, but I recommend you keep things "money making worthy". If you make every link you send an adfly link and use them everywhere people won't like you for it. For the scripts I make I always have a normal link and an adfly link and so far most people use the adfly link, so there really in no reason to force people into adfly links, if they feel you earned it a lot of people will use it just to thank you.
Now do realize you probably won't get rich with this, but I've been a neobux member for over 2 years and so far it only cost me money, so PTC isn't a good way to make money either I think. At least with adfly every penny you earn is 100% profit, with PTC you always have to pay for referrals (if you rent them) and maybe even special memberships to allow you to have more referrals and other "benefits".