Here's a nifty little program that counts the number of words in a LaTeX document. This isn't always obvious because a LaTeX document will most likely contain other words that are just LaTeX commands.
Did this on my 25-pages dissertation and the result was: 6710
I'm the author of this program.
I just want to signal the project moved to Sourceforge now.
Go now to http://lwc.sourceforge.net
Word Counts: What Is a Word? by Chuck Rothman
Article by Chuck Rothman on how to obtain a word count for a work of fiction ready
... Press the "Word Count" button on your word processor and there it is. ...