We always think that our prospects are reading every article, tweet, and blog post we make, but this is not necessarily the case. Many times people only read a small portion of what you are publishing online.
You can change this by including a link to one of your posts in an email to your list. Ask them to read the post and to leave a comment. This will help you to build readership to your blog and to educate your list about what else you are doing. I like to make a post about one of my upcoming teleseminars or webinars so that more people will attend.