Yep, starting with free sites to build up your own traffic base is spot on advice. And building a hub at the root of the domain is an excellent way to get a starting point for your link list later
However, the easy money was made long ago. These days, this business is long hours and hard work. Especially if you expect to make enough to pay the bills.
That said, if you're willing to put in the hours and learn the ropes...eventually, you can make money...and the biz does have its upsides
