snooker: You would be required to get permission from the author if you were to, for example, post it on your web site. Unauthorized usage may result in legal action, and it does infringe upon the rights of the author/copyright holder.
If you do want to use something for non profit, just contact the author. People will usually enjoy the attention their work gets. Mentioning that it's for non profit (and that you will provide credit) is usually the best approach.
Other note: Publications by Canadian Press, Associated Press, and newspapers usually FORBID usage of their articles. I know the Canadian Press wants something like 200$ for one-time reprint rights... infact, they charge 50$ specifically for classroom use!!!