Create Custom Characters for Your E-Learning Scenarios - The Rapid eLearning Blog
Tips on breaking apart and combining parts of clip art to create appropriate characters for e-learning, even if you aren't artistic enough to draw them yourself.
Blog posts
10 eLearning Freebies: Instructional Design and eLearning: Tips, Advice and Reviews
Free templates, sound effects, graphics, and more
Design Comics :: Characters and Scenes for Storyboarding & Design
Free characters and office scenes that can be used for e-learning. Different expressions and poses for conversations. The license information is conflicting; it's labeled CC-public domain, but requests attribution so it should really be CC-By.