HubPages has a comfortable "homey" feel about it that I have not found elsewhere so far. That may account for me spending more time here than I should since I am building a business writing online content.
Back in the olden days before the internet, we had monthly magazines for publishing shorter articles, and a freelancer had to write for which ever ones would buy the work. Most writers couldn't make anything to speak of writing for just a single magazine.
The situation hasn't changed all that much other than the market is online now. Limiting oneself to writing for one site is limiting one's income.