Here's some reading material. What I, personally do, when reading up, on anything of specific, is filter through the babble of things, that don't necessarily pertain to me, yet, read with an open mind, of trying to learn what it is, that I want to gain. For instance, some of this talks about marriage and family, though, it won't specifically pertain, on that level, the information alone is worthwhile, if this is something you are hoping to work on in your life.
Hope these help. Sure, there's a bunch more out there.
Intimacy: The Art of Relationships | Psychology Today
The Five Levels of Intimacy « Power to Change
How to Create Emotional Intimacy
The Right Way to True Intimacy - eHarmony Advice
http://www.focusonthefamily.com/marr..._intimacy.aspx