I’ve been using these little buggers incorrectly. The Associated Press Stylebook says to treat an ellipsis like any other three letter word, i.e., space before then the three dots then a space after. According to The Chicago Manual of Style, it’s “the omission of a word, phrase, line, paragraph, or more from a quoted passage.” It gets way more complicated when you need to use other punctuation and quotes and … so I would suggest you refer to your stylebooks.
Ellipsis – singular
Ellipses – plural
Funny how I’m now looking at every darn sentence with stylebook-eyes. I’d also like to thank Mom and Aunt Agnes for all the years of “Look it up!”