People want to talk themselves -- not just read. Engage in conversations as much as possible through the comments section and encourage social tie-ins.

If you really want traffic to avalanche, consider switching gears. Why not develop a forum? Off-the-shelf software exists to build one. You can always promote your blog through the forum and vice versa.

Websites that operate on this social model get free original content and marketing from their customers. That sure beats paying for it! That includes thousands of niche forums as well as big sites like LinkedIn. Frankly, the same is true of this "Answers" section on Clarity.fm. You'll see traffic skyrocket if your content is being supplied by your visitors rather than all coming from you. They'll also feel more engaged and return more frequently.

When it comes to the educator niche, I've been meaning to develop MathTeachersForum.com and LanguageTeachersForum.com along those lines myself, actually.