Look at Pete Cashmore, the 19 year old kid at that time starting the Mashable blog, now a 27 year old $95M Guy.
How about this story of twin brothers which started in online advertising now considered as prominent figure in affiliate marketing.
Google AdSense is one considerable gem on the net, please check this report where blogs earn $200,000 - $600,000 a month in AdSense.
Among others are theme designs, plug-ins development, basic website building, jobs available online (oDesk and Elance) and there's plenty out there waiting for us.
Sparking Online will be sharing to you the online gems by posting article updates as we cruise the internet ocean. This will be a very long but profitable journey. Come aboard and let's start the adventure together.
It's our Day 1 fellow treasure hunter.