A lot of people get stuck when they sit down to write an article, myself included. I find it hard sometimes to get words to flow naturally in a manner that makes any logical sense. But, I've got a huge tip for those who are stuck in an article writing rut.

1. Find an existing article on the topic you want to write about. Chances are, there are millions of them.
2. Read one paragraph at a time, and find the key sentence.
3. Write a new paragraph of your own based on that one key sentence.
4. Change the intro and/or conclusion paragraphs (usually to point to your site/sales pages), and throw in some nice formatting.

Bonus Tip

Once you get the hang of it, look for some good dictation software so that you can simple speak into a microphone instead of typing the entire thing. I personally use the free Dragon Dictation for iPhone/iPad (non-affiliate link) and then email myself the unformatted text, but I hear Windows 7 (and maybe Vista?) has a pretty good built-in dictation program.

Good luck, and happy writing!