Nice site by Balazs Babinecz
http://aix4admins.blogspot.com/
This blog is intended for anyone who is working with AIX and encountered problems and looking for fast solutions or just want to study about AIX. This is not a usual blog, it is not updated every day. I tried to organize AIX related subjects into several topics, and when I find new info/solutions/interesting stuff I will add it to its topic.