Should I add E-books and Blog Posts to my CV? I am still planning to get into a Master's program sometime in the fall next year.  Should I add my E-books and Blog Posts to my CV?  

I keep my blog posts formal and educational.  The following is a link to my blog: http://cybersecwise.com/wordpress/. I do already know people reviewing my CV will not actually read my blog.

I have also written two E-books.  One is called "NoSQL Injection for Elasticsearch", which was referenced in a Russian Defcon (Hacker Convention).  Since it was referenced in a defcon, does that count as Peer Reviewed?  The other E-book is called "Introduction to Web Hacking: Cross-site Scripting".

These things are all computer security related, but I am actually going to go for a Master's in Computer Science.
I would include them in a section titled "community engagement" or something of that flavor. 

Note that something being cited is not equivalent to peer-review, do not classify the work as peer-reviewed.