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".