As you can see by my attached chart, both my "not selected" and "indexed" pages have both been dropping over the past couple months. I have new content every day. What can I learn from this? What can I do? Have I been penalized?
You are running your blog and forum under same domain name or you have separated it? (For eg. blog.website.com or website.com/blog/)
If you mean www and non-www. I set that feature in WMT a few years ago. Google should only use WWW