Wow, i couldn't do more than 10 hours straight, how much more for 20? hehe. I usually am OL for just 7 hours a day.
Same here, most mornings up until 5.00 AM - problem is you start getting into something you have found to concentrate on and the time flies! I have gone to sleep when the rest of the house's alarm clocks are going off.
I spend about 3 hrs content writing - 2 hrs website / blog updates / modifications /designing - 3 hrs reading/browsing.
i have 3 hrs in a day.i am manly time spend to searching online job sites,social campaign sites etc. internet jobs have no clear formalities.
I work as my own boss pretty much so I'm online a lot. Only times I am offline really are when I'm travelling to/from work or when I'm asleep. All other times I'm usually online through one way or another, the internet is my life.