I find it quite challenging to keep myself focused continuously on the current task while continuously being distracted by some random email, chat, blog, rss feed... etc.
Several time I think of unplugging my net connection and concentrate on the task at hand. It works, till I feel that I should search up something and few moments later I find myself stocking around those distractions again.
What special 'trick' do you use to keep yourself focused for a continuous block of time?