Earn Without Investing

Blogging as a career is good for every one who can endure hardship in the beginning. I started off my career with absolutely nothing to invest in new blog. I started a new blog with WordPress.org, obviously for free, worked on it for about 3 months, developed links and then submitted it to smorty and payperpost. My blog was a pr3 then and I started earning somewhere around 400-500 dollars a month within 3 months of my start. During this time that is first 3 months I had real hard time convincing my parents that there is a lot to be done in this field as I had no proof to show any source of income. To overcome this difficulty I signed up at digital point forums and started looking for opportunities from bloggers. I began content writing at 10 cents per word and forum posting at a similar rate. Working about 14-15 hours a day I usually earned about 5-6 dollars a day. That is by no means huge money but it was just enough to convince my parents to allow me blossom my career in blogging.
Now 24 months since I started my first blog I think I have come a long way ahead, now I have a pr5 and two pr3 websites out of which I earn enough to lead a satisfying life. I have nearly everything I ever wanted to have.
Now I think its right time to invest in some more blogs and transfer earning opportunities to prospective bloggers. I would be expanding our little 3 blog group into 10-15 blog group, each blog dedicated to a different niche catering to the needs of readers and advertisers alike. This would open a new window for us to earn and we would also be able to generate some employment.
Hope this little experience of mine would guide some of the people who see a career ahead in this field.