Dotmarketer maintains several business-oriented weblogs:
Forex Blog - www.forexblog.org
Six Sigma Blog - www.sixsigmablog.org
Inventory Management Review - www.inventorymanagementreview.org

Dotmarketer also is in the process of developing a few lead generation websites:
50 Best Dating Websites.com - 50bestdatingwebsites.com
VOIP Now - www.voipnow.org
WHDb - whdb.com
Online Nursing Degree Guide - onlinenursingdegreeguide.org

As pet projects, Dotmarketer maintains:
DawgWire - dawgwire.com
DomeWire - domewire.com

Additionally, the owners of Dotmarketer contribute their time to two not-for-profit projects:
The Pope Blog - thepopeblog.blogspot.com (The Pope Blog is not owned by Dotmarketer but Jimmy Atkinson is the moderator.)
Resolve Uganda - www.resolveuganda.org (Resolve Uganda is not owned by Dotmarketer, but Andy Hagans is on the board of directors.)