LearnCitrix.com
Provides Citrix CCEA practice exams written by qualified instructors.

Citrix Training Courses from PTR
Classroom based and onsite training courses for Nfuse and Metaframe for Windows 2000, XP and Unix. Run by PTR Associates, Wokingham, Berkshire, UK.

Citrixxperience.com
Provider of CCA, CCEA, and CCIA certification practice exams, study guides, and study material.