One can find a list of state abbreviations for the US almost anywhere. Sometimes they are listed on the backs of maps, and others are often listed on websites. One of the most convenient places to look for them are websites such as Google, because they are given out automatically without really having to search for a long time.
Abbreviations are acceptable in an informal situation or when everyone knows what the abbreviations mean. For example, you could talk about NASA in any setting, but you wouldn't say LOL in a business meeting.
You could sell it on Craigslist or in the newspaper.
It Could Be Worse - 2013 Craigslist 2-6 was released on: USA: 2 May 2014
A car could be listed for sale on Craigslist, eBay Motors, Autotrader, Aol Autos, and Autolist. When selling an automobile online it is best to accurately describe the condition and features of the car that is being sold.
You could try Craigslist.
You could try Ebay or Craigslist.
There are many resources one has when seeking a Cessna 150 for purchase. Craigslist, Controller, and the Aircraft Shopper Online websites each have many listed for sale which one may find suitable.
ISO means In search of. For example, a Craigslist post could say ISO a gently used queen mattress.
It could be Cubic Capacity. There are many other instances of the use of CC as an abbreviation.
The official abbreviation for Massachusetts is MA. An unofficial abbreviation could be Mass.
There are many places to purchase a used Saab. It is possible to contact car dealerships owners in your area. It is also possible to look on eBay or Craigslist, as there are often times many cheap used items listed.