Where did my post go?

If you don't see your post, please consider it an indication that you posted something that was not too suitable. I don't want to see whinefests or rambling descriptions that don't do anything.

These are the sorts of blog posts I would like to see-

• Critical analysis of what you have seen so far.
  
• Provocative links to news stories, interesting web sites.
  
• Reasoned discussion of what we have learnt so far.
  
• Thought-provoking questions.

Yes, I am interested in your opinion, provided it is professional and well-thought out.