I'm going to take a good look at your blog and your individual posts to study your call-to-action and specific promotions...

That's a quote someone left on a previous post about looking at my blog. Funny thing is I am so new to this I need someone to explain what "call to action" is in a blog context and also what would be considered "specific promotions" in same! Any enlightenment would be appreciated.

Thanks in advance, Chris