Clueful Consulting
A directory of products organized into various views. Includes a small amount of commentary on each product.

CMS Directory
A collection of links and news. They are also working on a comparison database.

CMS Matrix
A young but evolving and promising tool for product comparisons.

CMS Review
Bob Doyle's CMS comparison tool. Contains lots of products, but is a bit lite on data.

CMS Watch
Provides a list of products categorized and also the annual CMS Report.

Datamation Product Watch
A large, alphebetized list of site management/CMS products with brief editorial.

Hartman Communicatie
Fairly comprehensive list with a simple feature rating system.

Intranet Journal
Quite a comprehensive list, open to vendors for additions and commenting. No feature details.

La Grange
A substantial list of mainly open-source products accompanied by brief editorial.

OpenSourceCMS.com
All open source products, fairly active and up to date.

OSCOM CMS Matrix
A comprehensive list of Open-Source Content Management frameworks and Systems. Contains links to project homepages and licensing information.

Ronald Bourret
XML oriented list, with some non-XML products included too. It includes useful editorial around each product.

This list is regularly updated. If you have a resource you'd like to add, please send an email to the editor.