140 Chars or Less & LifeHack
LOL. Anyway, this is a great read:
Saying it in 140 Chars or Less
Further, there's some other good material on his site, i.e. building credibility online, A Beginner's Guide to eBooks, 10 Ways to Pimp Your Blog, etc...
LifeHack.org
Much to see, and the author's writing style is on point.
Enjoy!
~D.