The CliffNotes website includes a page entitled "Homework help in Developmental Psychology from CliffNotes" which includes articles on all the major areas of developmental psychology. In addition, the site includes a glossary of major developmental terms.
The homework help can be found at http://www.cliffsnotes.com/WileyCDA/CliffsReviewTopic/Developmental-Psychology.topicArticleId-26831.html The homework help section also includes a webpage for introductory psychology at http://www.cliffsnotes.com/WileyCDA/CliffsReviewTopic/Psychology.topicArticleId-25438.html
The developmental psychology glossary can be found at http://www.cliffsnotes.com/WileyCDA/Section/Developmental-Psychology-Glossary.id-305499,articleId-30164.html
For more information on CliffNotes books go to http://www.cliffsnotes.com/WileyCDA/