• Temperament
• Attachment
• General

Temperament

• B-DI 

Commercial site from B-DI, the publisher of the New York Longitudinal Scales and the Carey Temperament Scales questionnaires and software, that has some useful information on temperament and some other resources for parents. 

• The Preventive Ounce 

Interesting site mostly for parents to learn more about their child's temperament and why understanding temperament is important.
 

 Temperament and Your Child's Personality 

Explains how temperament and personality are influenced and influence environment.  From the Child Development Institute.
 

 Temperament 

Links page for the definition of temperament, measurements of temperament, and other information.
 

Attachment

• International Attachment Network 

Good papers and links on attachment theory, Bowlby's biography, and the clinical implications of insecure attachment in children.

• Attachment Theory and Research 

Everett Waters and Judith Cromwell's (SUNY Stony Brook) excellent site on attachment theory, assessment, and research. "A library of attachment researchers' publication lists, attachment measures for infant-mother, childhood, parenting, and marriage research. A gallery of attachment artifacts and observations in the Bowlby - Ainsworth tradition." Excellent assessment resources (surveys, observational scales, Q sets) for attachment available here online.

• Attachment Theory 

From Northwestern University's Great Ideas in Personality site. Gives a discussion of attachment styles (a la Bartholomew) in the context of a brief paper entitled "Attachment Styles: An Evolving Taxonomy of Evolutionarily Adaptive and Maladaptive Affectional Bonds." Plus has some good links on basic attachment patterns and the strange situation. 

• Reactive Attachment Disorder 

Personal website (a series of slides) by John J. Reno dedicated to educating others about Reactive Attachment Disorder -- problems which can arise from children's traumatic early neglect and/or separation from their caregivers.

• Attachment Disorder Support Group 

Large site with resources on reactive attachment disorder. Good links and information.

• The Whole Family Attachment Parenting Association 

Organization which promotes "Attachment Parenting," a style of parenting involving extended close contact and responsiveness, believed by some to foster good attachment outcomes in children.

General

• Emotions and Emotional Intelligence 

Site with some information and links on researching human emotions. From Cheri A. Young, Cornell University

• Basic Emotions

This site, from Northwestern University's Great Ideas in Personality site, has a table of different theorists' perspectives on which are the basic emotions. Also has some links to other emotion sites.