Requirements Engineering Journal

• INCOSE Requirements Working Group -- International Council on Systems Engineering Requirements Working Group page.  Tons of resources for requirements analysis, definition and management.  Great site!

• DOORS -- A multi-platform requirements management tool from TeleLogic.
• RequisitePro -- from Rational.
• INCOSE Tools Database -- Software engineering tools and requirements management tools resources from the International Council on Systems Engineering (INCOSE).  Provides survey of available tools with comparisons.
• Requirements Management Tools Survey/Comparison -- Part of the tools database above at INCOSE.

• Requirements Tracing - An Overview -- A look at requirements tracing.  What it is and why we do it. From the Software Engineering Institute.

• Characteristics of Good Requirements -- From the International Council of Systems Engineering (INCOSE).  For more on requirements, see this page.
• Writing Effective Natural Language Requirements Specifications -- From the Feb 1999 issue of Crosstalk.
• Usable Requirements - Habits of Effective Analysts -- By Karl Weigers.  A good article on what it takes to define requirements.  A "game plan" that an analyst would use to identify and define requirements with the customer. And why any old programmer doesn't necessarily make a good analyst for defining requirements.  From Software Development Online
• Doing Requirements Right the First Time -- An article from Crosstalk.
• Requirements Management -- Entire issue of Crosstalk (Dec 1998) devoted to the subject.  Great articles.
• Factors Affecting Requirements Management Toolset Selection -- An excellent paper from the INCOSE RWG. 
• Software Requirements Analysis Article Database -- At Software-Engineer.org.