Can anyone enlighten me? If the answerers want to explain the particulars of the pronunciation of other abbreviations, they are welcome.
In addition to "compare with" you can also say "confer" but that's probably perceived as a little bit pedantic.
"compare with" is what I normally use.
I don't know how common it is, but I normally just pronounce the letters "see eff." Granted, I normally only say it out loud when I'm reading some textbook to myself, but no one's ever remarked on it in other circumstances.
Well, according to the page you linked, it's pronounced compare.
(In my head I pronounce it as "come from"... as in the analog of "go to". To me cf means something deeper, not merely "think of this in the context of x," but "go, explore x, and then come back here.")