You can make a lot of money from subdomains. As long as you have good content, decent SEO and basic linking
the best way is to use them as 'support' for your 'real' money-making site or blog. Obviously, you can't create a network of blogs by hand, but you can do it automatically. There's a good free primer here - free autoblogging ebook at bloggerhigh.com
There are plenty of ways to make money with blogs. 1.If you have a popular blog, use PPI ads (Pay Per Impression) 2.Sell merchandise from your site using shops from Cafepres, Spreadshirt or other things. 3. Use affiliate marketing, sell other people products on your site for a comission. 4. If you are in a niche market, sell products or advertise products related to it. 5.Advertise your referral links from sites such as V-bux.com or Transcendent Innovations ( Incentivised Freebie Websites)
Stop talking nonsense. And please stop promoting your stuff. Even my neighbor (12 years old) knows that he can use free platforms to make cash OR to rank his site higher (and make cash with it).
People simple don't understand the power of free platforms (blogs and others) to make cash. In a direct way OR using them to promote their sites (SEO or directly). Period.
I have 3 separate reseller hosting accounts and I still use free site like blogger or free wordpress to promote some products and certainly to create links to my sites.