NAAP (the Nebraska Astronomy Applet Project) — is available here. NAAP consists of full-featured simulations programmed in flash and supporting materials appropriate for use in computer labs, homework, or classroom demonstrations. Student guides for all 15 modules (each containing multiple simulations) are available in Microsoft Word format.

ClassAction (a peer instruction database) — is available here. ClassAction is a computer database of questions and feedback resources for peer instruction. Voting can be done with a personal response system, index cards, or fingers. Instructors have total flexibility in choosing questions and feedback tools based on the needs of their class. The questions are very visual (strongly based on images, diagrams, and animations), permutable (easily cast into alternate forms), and over 100 simulations are available for feedback.

Interactives (animated ranking and sorting tasks) — are available here. These animations ask students to manipulate (either order or categorize) icons that can represent astronomical objects, characteristics, events, and concepts. Students are then graded, provided feedback, given access to background information, and allowed to take another randomized version of the task. Around 80 tasks were created.