Making a "quick $50" is pretty difficult - I guess it depends on how you define "quick". There are loads of paid-to-click sites, which don't offer easy, significant money. Anything that offers a referral program does allow you to make a bit, but that takes a lot of work marketing the scheme - and I'm not sure how easy it is to pick up easy referral business that way. Being in the US, there are probably loads of sites you can use (e.g. MTurk, swagbucks) which a lot of others can't. But ultimately, it's about how much effort you want to put into working some of these sites.