Well I saw the previous post from a couple of years ago, and I decided to expand on it. So here are some other good blogs with their descriptions (some taken off their sites).
The Cranky Flier- www.crankyflier.com- My personal favorite; the Cranky Flier blog is written by Brett Snyder , an industry insider.
Airline Reporter- www.airlinereporter.com- Another good one; Airline Reporter was founded in July 2008 to provide industry-wide news on a consistent level. The blog doesn't try to follow the constant daily financial status of airlines, route changes, travel deals or other similar details (there are other great blogs out there that do that). Rather it follows the airline industry in a way that is interesting to those who work and have an interest in the airline industry. By following current stories, having interviews with people working in the industry and traveling the world to cover different events, Airline Reporter has it covered
Swelblog- http://www.swelblog.com/- William S. Swelbar is a Research Engineer in the Massachusetts Institute of Technology's International Center for Air Transportation, where he is affiliated with the Global Airline Industry Program and Airline Industry Research Consortium. This guy really knows his stuff.
Expect more blogs to come…