This package defines a couple of useful Views style plugins. If you have a view sorted first by a date field, you can show the results grouped by month. If you have a view sorted first by Taxonomy Term, you can show the results grouped by taxonomy term.
(Note: This module used to be called "Group By Month". Its name was changed because it now has a couple of handy groupers, and may include more in the future).
Short name
views_groupby_pack