Simon asked for help in his blog as to how can one write an article. Actually, there's no straight answer to this one as you can always get a writer's block from time to time and never get over with. (I've encountered this lately and had not been able to recover)

However, I suggest that you start writing the moment the idea hits you. Write it first in a notebook if a PC is not immediately accessible to you. One site that really helped me get started in blogging/writing was Shery's DailyWrites lesson. It is free and I suggest you check it out. 

I find writing to be therapeutical too in some ways. Lately, I've been a little sad and decided to draw a card in my Writer's Deck. The task given to me is to "write a letter" and express my feelings. I decided to write to my Dad (who already passed away years ago), pour my heart out, and felt relieved a few days later. I'm back to my normal self again.