Shaun Innman posted about a technique he call's Widon't, for dealing with the widow problem on the web.

The widow problem is when you have a single word on a line by itself, at the end of a headline or paragraph. In typesetting this word is called a widow.

For example:

Man Walks On 
Moon

Moon is the widow in the above example. Shaun fixes this by replacing the last space with an   He provides a function in PHP, but here's a simple regular expression for ColdFusion to do the same:

ReReplace(headline, " ([^ ]+)$", " \1")

It can get a bit trickier to fix this at the end of paragraphs, here's another regular expression that might work for that (need to test more):

ReReplace(text, " ([^ ]+\r?\n)", " \1", "ALL")