Useful Links
Homiletics
The Preacher's Institute Orthodox - Excellent Resource
Blogs and Podcasts
SQPN - Leading The Way In Catholic New Media
Deaconcast.com by Dcn. Mike Buckley
Deaconcast.net by Dcn. Bill O'Donnell
The Readings
USCCB Lectionary Readings Roman Catholic
Meditations on the Weekly Readings (these sites usually feature topics well in advance of the upcoming week)
Weekly Wellsprings - Roman Catholic
The Center for Liturgy at St. Louis University - Roman Catholic - Popular
Word On Fire - Audio Homilies Usually posted the week of, but has an extensive archive.
The Text This Week - Various Liturgical Churches - many links -
The Preacher's Exchange - Hosted by Jude Siciliano, OP Preacher/Instructor in Homiletics
Basic Writing Technique
Sentence Sence - A free writing course
Webook - an online publishing site with in depth technique and anaysis of submitted writings
Basic Sermon and Homily Writing Techniques
Sermon Writing - Technique, not theology
Illustrations and Stories
Sermon Illustrations - Multiple sources and denominations
Fr. Tommy Lane's Story Archive (He also has a link to his homilies)