Top 100 Tools for Learning 2011 List.  Compiled by learning professionals, you'll find a comprehensive list of digital authoring, presentation, and research tools available for free.

Research Project Calculator.  A simple and comprehensive five-step model for navigating the research process.  The Calculator computes your project schedule based on your due date and gives you deadlines for completing the steps.
Big6.  A framework for teaching information literacy skills. - TED stands for Technology, Entertainment, Design.  This site makes the best talks and performances from TED available to the public, for free.