Location, Location, Location
The issue now, before the 42,000,000,000 IMHs are all taken, is creating something of value and making it findable. Location (on Google), Location (on Google), Location (on Google).
IMHO, Google isn’t always able to determine what content is most valuable, so those of us already online spend far too much time trying to figure out how to show Google that they should give us a great Location. The other alternative is paid advertising.
When the 42,000,000,000 IMHs are all in use, the competition for Location (on Google) and the price of paid ads will determine who stays in business and who becomes a ghost town.