The Missing Jet - WHERE IS IT? WHAT HAPPENED? This is the best total explanation I have seen.

Most likely, and by "most likely" I mean the probability is approximately 99.999999999999%, the plane and its unfortunate passengers are scattered like confetti across a large portion of the seafloor under the Gulf of Thailand or the Andaman Sea.

It does go into alternate theories.  Personally, I am hoping it is hidden in a jungle so at some point the innocent passengers can eventually make it back home to their loved one.  Realistically, that is probably not going to happen.  

http://www.stonekettle.com/2014/03/the-twilight-zone-malaysian-airlines.html