Some of you who are interested in Ki Gong may find Master Dan Segarra's blog to be of interest.
Master Segarra has been online, sharing his knowledge with the Korean martial arts community for many years. Recently, he has gotten on the Youtube bandwagon and is also blogging.
What I'd really like to point out is his introductions to ki gong and meditation that he is sharing online. Very no-nonsense, and very much in line with what I've been exposed to. I especially enjoyed the lesson visualizing the lemon as Grandmaster Shin shared this same lesson with us at a black belt class years back.