The HGTV (Canada) website is full of great information, tips, tools and fun QUIZZES for homeowners. I often include a link or two in my client newsletter - people really seem to enjoy it, as I can determine from the number of click-throughs in my Constant Contact statistics.
Here's an example (this will be in my February newsletter):
"Is it time to invest in some major changes or can you make do with a few tweaks? Find out if your rooms need professional help." TAKE THE QUIZ