Serialized

From Guidevines

A work presented in sequential sections in a periodical. For example, a short story might be serialized in segments by a daily newspaper; a novel might be serialized over months of daily newspaper issues, or three or four issues of a monthly magazine; anything might be serialized daily by e-mail, the newest form.

Serializing can be seen as just taking the whole and chopping it evenly at chapter breaks. Because of this, some people buying, say, SF monthlies wait until they have all the installments before starting to read. More challenging is the daily e-mail installment that may cut off at considerably less than a chapter. One needs to find the best spot to subdivide chapters to provide little cliffhangers, so the reader looks forward to the e-mail delivery, without leaving them at a point where it's difficult to take up again 24 hours later, as in the middle of a conversation.