Topic: editing blog
I found a really great blog at http://theeditorsblog.net/fularchives covering many writing topics. I highly recommend it.
One of the blog entries is about the use of quotation marks vs. italics for certain words or titles, which cleared up many cases for me. It's located at http://theeditorsblog.net/2014/05/12/ma … tion-marks
Hope it helps.