Xtce.com

JUnit, Testing Resources for Extreme Programming
This site is dedicated to software developers using JUnit or one of the other XUnit testing frameworks. They are tools for Extreme Programming advocates.
www.junit.org/

Whizlabs
Offers general IT certification exam preparation along with select other technologies.
www.whizlabs.com/

Cleanscape Software Development Automation Tools
Offers TestWise, a software visualization toolkit for C and C++ programs, Grayboxx, a testing solution for software written in C, Fortran, Ada, & Assembly and static analyzers for C, C++ and Fortran. [Commercial, trial version]
www.cleanscape.net/

Reactive Systems
Provides embedded-software design automation tools, software validation services, and training.
www.reactive-systems.com/

Staff Development Services
Building strong businesses one employee at a time.
www.staffdevelopmentservices.com/

Employee Selection and Development Inc.
Assessment products include: integrity and work attitude surveys, sales skills, math aptitude, spelling and vocabulary aptitude, and personality profiles.
www.employeeselect.com/

Enerjy Software
A suite of software tools for Java developers to provide code analysis, and profiling for memory, performance and thread deadlocks. [Commercial]
www.enerjy.com/

Randy Rice's Software Testing Site
Over 20 online, in-house and public training courses in software testing and QA.
www.riceconsulting.com/

Optimum Software Development
Outsourced software development specializing in .NET and embedded communications and control applications.
www.optimumsoftware.com/

Comp.software.testing Frequently Asked Questions
FAQ list for the Usenet newsgroup.
www.faqs.org/