Trello
Free tool for organizing projects. This isn't a standard project management tool, but you could use it to assign and manage tasks in a team.
Free Screen Sharing | Screenleap
Free screen sharing. Click to share and let Java run. Send a link to the other person or give them a 9-digit code. No sign up required
PlagTracker - Plagiarism Checker
Highlights sentences, shows links to sources where content came from. I wish it showed the original and copied content side by side so it was easier to compare; you have to just go to the source and find it yourself.
Feature Comparison - ActivePresenter
ActivePresenter is a screencast/simulation tool with some similar features to Captivate. The free version can do screencasts and export them to WMV, but not simulations in Flash. You can add captions and zoom and pan even with the free version.
5 Free Desktop Image Editors for E-Learning » The Rapid eLearning Blog
Free options for image editing. I've used Picasa, Paint.net, and GIMP before, but PhotoScape and PixBuilder Studio are new to me.
CourseLab - free e-Learning authoring tool
Free tool for course authoring. Screen captures and PowerPoint imports are paid extras, but the basic tool is free. Might be nice for creating portfolio samples if you don't have access to Captivate or Articulate.