If time is all you are investing then stop reading this forum and start creating sites made for adsense, amazon etc, dont stop until your making at least $50 a day. I repeat, do NOT stop making sites... just keep going until you make some cash. Learn how to rank your sites well in google. Organic traffic = passive income that you can spend on other ventures.
Then branch into a few CPA and Affiliate offers, test out using PPC to drive traffic, if that works out, rinse and repeat. The world is your oyster.
If your thinking of investing 50k on stocks, just shoot yourself in the face right now and save yourself the heartache. While your at it, shoot Thomas1984 as well for even thinking of such a retarded idea.