Learning how to actually make money online without paying a freakin penny for it

I have been trying for a while now to find a way to earn some income in my spare time online and so far it's been very frustrating. Everyone has a get rick quik scheme for the low low price of your soul. I got some email today for the google cash machine or whatever and out of pure bordom I read it, of course it's crap, but I had never heard of adsense on google.com before so I went to google and searched it. I looked for a little while and sure enough you don't have to pay google one red cent to start making money. I though there has to be a trick like everything else out there, but nope, you just advertise on you web pages (ie blogs, myspace, store, whatever you have) and they pay you everytime someone clicks on their ad, or theres another kind of ad (not too sure about as I just started today) that just pays you everytime someone sees it. So if you have a pretty high traffic site (like my myspace page) you could stand to make pretty penny lol. So anyway, Im trying this and other advertising out and I'm keeping this blog as a personal record of what works and what doesn't, hopefully to help someone else like myself out. Wish me luck!