Originally Posted by StarkReality

Check hubpages.com, it allows people to create mini portal sites and since the domain has an awesome authority, getting ranked in the google top 10 search results for any low to medium competitive term was incredibly easy. You just named your hub according to the keyword(s) you wanted to rank for, linked the shit out of it and 48 hours later you got a great ranking most of the time. Pretty much a moneymaking autopilot thing and the loss for some people here will be in the five digits a month range each...it was obvious that it wouldn't last forever, but it still sucks.

It still works well for mainstream.