Administrating vs Admining

I get the sense that the word "Admining", like the word "Admin" from which it derives, is used to refer to computer administration, while "Administrating", like "Administrator", is used more when it is finance or buisness being admin'd. I would like to know what other people think, though, if that is indeed so, or if my perception is wrong.

Also, as a side note, what about "admined" vs "admin'd".

The usual English verb for supervision is administer. The variant forms administrate and admin are both used primarily in technical jargon, mostly in reference to computer system administration. This Ngram shows that they see very little use in general English compared to administer.

It's not at all unusual to use -’d instead of -ed for forming the past tense of an abbreviation, especially for acronyms. Admined is awkward because there's (secondary) stress on the second syllable: admin'd or adminned would be preferable so that people don't read it as rhyming with mined.

Admining is not found in Chambers, ODO or Collins dictionaries, nor in TheFreeDictionary. I had never previously heard of it.

On the other hand, Admin, I would say, is now in common usage in many areas of life and I certainly hadn't thought of it as being used primarily in computing administration. Nor have I ever seen it used as a verb, as mentioned in another answer.

Admining is a slang term from administrating (see administrate). It is popular in online gaming and social communities. Administrating is the proper term to use, as well as administrated or administrate. You have the right mindset; just keep in mind that admining is not an official word.

Usually you will only see this usage:

I admin a page on facebook.

I am an admin on that server.

The following are acceptable for informal chat:

I am admining this server.

I admin'd that facebook page.