The following are a couple of articles that I find note worthy to the point that someone who has read them could really know what is interaction design, experience design and branding.

Why it is important for applications and websites interfaces to not display warnings as a response to user actions:

http://www.alistapart.com/articles/neveruseawarning/

What branding is really about:

http://www.jonkolko.com/writingBrandUX.php