I just found this interesting post on Pick the Brain that lists 10 writing tips from some of the masters of the art.
Their tips for better writing go as follows:
1. Cut the boring parts
2. Eliminate unnecessary words
3. Write with passion
4. Paint a picture
5. Keep it simple
6. Do it for love
7. Learn to thrive on criticism
8. Write all the time
9. Write what you know
These are great! Thanks for the link, too. 🙂
Here are fifty tips on writing from the Poynter institute of Media
http://www.poynter.org/column.asp?id=78&aid=103943