I, like many other authors, use abbreviations when writing blog posts. Unfortunately Thane and I have had to learn these terms mostly on our own. You don't have to. Here's a list of some of the common abbreviations you might run into. 

POV = POV stands for Point Of View, it can refer to wether you're writing in first, second, or third person, but can also refer to your main character. 

POVC = This is what I meant when I spoke of it referring to your main character. Point Of View Characters are very important and tend to be the base of your novel. If you switch POVs at any point in your book however, this term becomes all the more necessary. 

OC = Ah, the famed Original Character everyone wants to have. Most characters, while mainly your own creation, are not completely original. For example, I have a lovely character named Katara. When I named her I had never watched, or even heard, of Avatar the last Airbender. I had no idea I was naming her after such an amazing character (I actually named her after someone's dog). You'll find little bits and pieces of your character have been pulled from other books, movies, etc... Sometimes even people you meet on a day to day bases. The term OC can also apply when talking about your Own Character. 

MC = Like POVC and OC, MC refers to your Main Character.

First Person = While not exactly an abbreviation, the POVs are important to know and understand. First person is from the POV of your character, "I closed the cabinet door" "I started the fire" "I watched as they played chess". As an author it can be a lot easier to start out writing in First Person, however it can present it's own problems as well. While Inner dialogue may be easier you can't follow the storyline of any character not within sight/hearing of your POVC.

Second Person = Second person is hard, and can sound a bit silly when used in fiction writing. Some people, like C. S. Lewis, can pull it off flawlessly from time to time. Others, like yours truly, can only seem to manage it in blog format. In fact it's what I'm doing right now. "You would never..." "(y/n), you say" or your inner thoughts are used most often. The good writers use it from time to time to give the reader a picture for something they can not quite describe. Such as "You could never imagine something to taste so sweet.". When Second Person is used like this, it's normally in the context of a Third person narrator talking to the reader. 

Third Person = Third person is definitely my personal favorite. It allows you to move from person to person, and describe settings much more then any of the others. Although it does a few drawbacks. 1) you have to remember where everyone is and how many people you had in that scene. 2) It is really hard to tell people who is talking at any given moment without sounded repetitive. 3) There's no inner thoughts. You as the narrator aren't supposed to have much of an idea of whats going on inside someones head. Occasionally you can get away with "She felt frightened" but most times you have to tell about the sinking feeling of dread in her stomach. You don't have the aid of the character going "This is terrifying" in their head. Rubbish I know but it comes with the territory. 

Indie Publishing = Independent Publishing also can be called Self Publishing. Like other methods of publishing, Indie Publishing has it's own drawbacks. But unlike other methods, Indie publishing allows you to maintain a majority of control over your novel and it's destination. Wether as big the movie screen or as small as the cover art. 

Well, thats all I have for you at the moment. As I learn more terms and abbreviations I will make sure to add to the list to keep you all updated.