From Columbia Journalism Review:

Just as colon the organ, um, moves things along, so does colon the punctuation mark. It signals to a reader that what follows is a list, an elaboration or definition, or something else that continues the thought. It says that what follows is so closely related to the first part of the sentence that a period is too abrupt, but not so close as a comma would indicate. In a driving metaphor, think of a colon as a tap on the brake before moving the car into a curve.

  • Talking about colons:

    • I was disgusted for a minute before I realized they were trying to write cologne.

    • Ben

      Those are epic.

  • Susan linde

    I read and re-read this post several times looking for the colon in the paragraph. One would expect the author to take the opportunity to show by example to help us out.

    • All you have to do is click the link to the post from which I pulled the paragraph.