Revised Common Lectionary, Vanderbilt Divinity Library
Online readings in text or table form for all three years of the RCL as posted by Vanderbilt. This is the standard lectionary site that almost all RCL lectionary sites refer to.
http://divinity.library.vanderbilt.edu/lectionary/

Expository Sermons and Worship Resources
Sermons, Bible studies, worship resources, links (from Community Bible Church, Williamstown, Massachusetts.) Includes some sermons by historic figures as well as sermons by Coty Pinckney the church's pastor.
http://members.tripod.com/tcpiii/christia.htm

SAMUEL
Acronyn for Scripture And Mission - UCC Electronic Library. From the United Church of Christ and includes the full RCL texts, responsive psalms with antiphons from The New Century, Hymnal, themes from the ecumenical lectionary-based Inviting Word curriculum, and a commentary on one of the RCL passages.
http://www.ucc.org/worship/samuel/

Preaching.org
A forum for the discussion of the practice of preaching, the shape of culture, and the points of connection between the two.
http://www.preaching.org/

The Text This Week
Scripture study, worship and liturgy links and resources, indexed according to the texts of the Revised Common Lectionary.
http://www.textweek.com

Homiletics Discussion Forum
A discussion forum at suite101.com dedicated to homiletics.
http://www.suite101.com/welcome.cfm/homiletics

Pastor Jim's Illustrations Plus
Free sermon illustrations for pastors, teachers, and public speakers.
http://www.net153.com/illustrations

Desperate Preacher's Site
Offers resources for preachers as well as an on-line community for sharing sermon ideas.
http://www.desperatepreacher.com/

Christian Network
A source of numerous sermons and articles from the UK and US.
http://www.cnetwork.co.uk

OzSermonIllustrations
Hundreds of free sermon illustrations, focusing on stories and anecdotes written from an Australian perspective but international in scope.
http://www.ozsermonillustrations.com

The Barrel
Sermons and sermon resources based on the Gospel Lessons from the Revised Common Lectionary. Part of the Crossroads Presbyterian Church (PCUSA) website.
http://www.crossroadspc.org/thebarrel

Jackson Snyder's Free Sermon Archive
Over 500 texts: sermons, lessons, translations, articles and major works by Jackson Snyder. Includes apocalyptic, apocryphal, Yahwist and Millennarian works.
http://jacksonsnyder.com/arc/sermons.htm

Expository.org
Collection of sermons, worship resource materials, and small group studies.
http://www.expository.org/

Pastor Bill's Web Resources
Includes Reformed sermons, short stories for children, prayer resources and links to other Reformed sermon sites.
http://www.pbv.thunder-bay.on.ca

Academy of Homiletics Home Page
Features the official presence of the Academy of Homiletics on the web. There are areas for the general public as well as password-protected areas for members of the academy.
http://www.homiletics.org

Sermons and Stories
Sermons and stories based both on the Gospels and the Revised Common Lectionary also includes an enormous list of links to topics related to preaching.
http://www.sermons-stories.org/

Christian Illustrations
Contains nearly 100 illustrations for preaching.
http://www.geocities.com/christianillustrations/

Articles, Sermons, and More.
Thousands of articles, sermons, letters, poems, and other spiritual writings from hundreds of authors, past and present.
http://articles.christiansunite.com/

From Gospel to Sermon: Preaching Synoptic Texts
Excerpt from a new book on preaching the synoptic gospels from the perspective of narrative criticism.
http://luke-acts.com/readexcerpt.html

Disclosing New Worlds
Weekly reflections on the Revised Common Lectionary readings.
http://disclosingnewworlds.blogspirit.com

Gospel Notes
A weekly weblog from Duncan Macleod, Australia, reflecting on the lectionary gospel readings.
http://www.gospelnotes.postkiwi.com

Chris Haslam's Lectionary Commentary
Brief commentaries on each of the four texts for last week, this week and next week. Episcopal.
http://montreal.anglican.org/comments/

Preaching the Revised Common Lectionary
Listserv for sharing ideas on preaching using the Revised Common Lectionary. Content can only be accessed by subscribe and password.
http://listserv.louisville.edu/it/listserv//archives/prcl-l.html