Here are a couple of short articles on information overload and how to cope. They're short and might give you heart! I puzzle over how some people seem to write 20 posts a day, keep abreast of 100 blogs, multitask etc.etc.
Guess the key phrase in the second article is
"Want to eliminate your distractions, it's easy. Disable email alerts. Exit Twitter, sign out of IM or set yourself as "busy." Trying to write? Launch Darkroom, Notepad, or Windows Live Writer. Then just work...in peace."