8847,

I think 50 is a good amount to start with. If you have a job, make a passive investment like, stocks, land, mutual funds etc. If you want to start your own business in USA, get a franchise of.. say Subway. If you are a techie, you can take a risk of some amount to run your own website. I don't know but a site like Sajha should make about 2,000/month. Wherever you invest, keep at least 10k cash separate. PM me if you want to share ideas :)

Bodmas may also be right. Do your homework before you invest.