Story Writer Resources
Here's a few resources I've kept that Sims story (or general) writers may find to be handy. Maybe someone will stumble upon it and find something useful to them... or maybe not.
The Purdue OWL: Grammar - http://owl.english.purdue.edu/owl/section/1/5/
A wide variety of information and grammar rules in general. We have often used this in several of my English classes, so it's a good resource if you forgot or just need to refresh your mind on a certain topic.
Writing tips - http://www.betterwritingskills.com/writing-tips.html
Exactly as the title says. Some of it is about formatting on programs such as Microsoft Word, which wouldn't help a Sims story writer, but there are also several sections that explain topics that writers often aren't sure about. (whom verses who, for example)
Writing Forums - http://www.writingforums.com/content/
Another self-explanatory one. Read stories written by others to gain inspiration, give feedback, or just have fun. (Some people may not have the exact same opinion on this one; I just find reading something written by someone else helps get your own self writing)
I may add more if a good one comes up.