Online Resources for preparing for Data Structures
Introduction to Programming Using Java - online textbook
Data Structures and Other Objects Using Java (lecture notes, etc.)
Animations for Goodrich/Tamassia book
Presentations for Goodrich/Tamassia book
Slides, Notes, and Lab Manual for C++: Introduction to Data Structures by Larry Nyhoff
Online CS Modules: Data Structures
Excellent collection of resources
Online Data Structures Course Offerings
Tennessee Regents Online Degree Programs (RODP)
Victoria University of Wellington, New Zealand
Athabasca University (Canada)
University of Maryland University College
Knowledge Systems Institute
Harvard University Extension School
Self Placement Test at Depaul University