The link above contains some very helpful information for promoting, writing, and organizing your writing life.
I was especially fond of the article: "Marketing for Introverts" by Angelica Ackerman. Her well composed introduction contains a great description of the challenges faced by introverted writers when it comes to self promotion:
The introverted author is by no means an unusual creature—far from it. The introverted nature works very well within the creative fields; it often accompanies a vivid imagination and attention to detail, which are fantastic for an author. Unfortunately for introverts, traditionally, that same nature went against the idea of marketing and sales. - See more at: http://writershelpingwriters.net/2013/08/marketing-for-introverts/#sthash.wHiaI56b.dpuf