While preparing my homily for the Solemnity of Mary, Mother of God (Jan 1), I just went to the Factbook article for January 1. It has, as can be helpful, Today in Christian History, an On This Day section, Daily Devotionals, and Saints. All well and good.
What it lacks, and what would be REALLY useful, is a SERMONS / Homilies section. Let it pull up for me all of the sermons tagged with January 1 of whatever year. This would significantly reduce the pain being unable to find homilies in my collection that lack Scripture tagging (e.g., those of Pope Benedict XVI) but do have date tagging, as well as, for 'fixed' feast days, get around the problem of not being able to search for homilies by liturgical calendar date.