I would like to invest something like $50-$100 to begin learning. Which site is the easiest/fastest?

The best investments you can make with that money are "The Successful Investor" by William O'Neal and "Lessons from the Greatest Stock Traders of All Time" by John Boik. Had I read, re-read, and really understood these books back when I was at the stage of having $50-$100 to invest, I would've have become a millionaire much sooner with a lot less headaches. Then when you're certain this market has turned back up, select a few of the right stocks at the right time and buy in the right way (all explained in the books), and you're on your way......

for 50 to 100 dollars you will excellent books on stock market. Get invested and after mastering the subject, start investing

You can use http://www.thinkorswim.com and they give you $100,000 dollars paper money to help people like you.

you can check this site, where you are allowed to start trading for as littles as $50.00.

starting to trade with such small amounts is the best way to get acquainted with the market. you may increase your level and scope of activity as you find fit, once you get familiar with it.

You can open an free Marketiva forex \gold\fund\indexs online trading account , with $5 reward and $20000 virtrual fund for practice .Just click the following link to open an account.
http://www-forex.spaces.live.com