you can and should google around, read a lot, and see what interests you and you agree with. investopedia is useful tool, some articles on seekingalpha and the motley fool CAN be useful (but there's a lot of crap on those sites as well - being able to know what's what is a useful tool that you can only learn through experience)
and feel free to ask more specific questions here if you have them at this point. i personally feel that it's worth taking a few hundred/thousand bucks and playing around with it to see what you think of things/to gauge your risk tolerance and preferences for different kinds of securities/market conditions/whatever.
tl;dr - read a lot, but you can't learn everything without trying it out yourself