The Hypertext Essay Markup Protocol is an online tool for marking common
grammar and punctuation errors in a written document. After downloading
a set of pre-recorded macros and copying them to the Normal.dot template
in Microsoft Word, the reader inserts the appropriate macro at the
site of an error which renders the selected text as a color-coded link
to the HOWL Handbook page related to that error. The reader can then review
the instructional page and make the necessary revision to correct the error.