One of the blogs I found (located on http://michelle-socialpsychology.blogspot.com/2007/10/effective-interpersonal-communication.html) was strictly informative and also educational. It was a blog in the format of a paper explaining ways one can teach effective interpersonal communication skills.
The second blogĀ I found is more of an informative look at the different communication aspects in certain situations. The main example used in this blog is breaking up a relationship. http://funyz.wordpress.com/2008/02/27/interpersonal-communication/
A third blog explains the importance of communication and expresses its role in criticism. This blog takes on a more informative approach. http://alena2008.wordpress.com/2008/02/18/criticism/
Many of the other blogs I found under interpersonal communication were critiques of books, websites, etc. on interpersonal communication.