Here are Free Engineering e-Material and e-Solutions options:

Free Slide Shows
Free PDF Slide Shows
Free Coursework Material
Free Continuing Education Courses
Free Coursework Material Hosted by Google Knols
Free PDF Coursework Material
Free Audio Coursework Material
Free PDF Tables and Plots Material
Free Video Clips
Free Video Clips Hosted by Google YouTube -- Option A
Free Video Clips Hosted by Google YouTube -- Option B
Free Online Calculators
Free Modeling Material
Free Simulation Material
Free Computer/Programming Material
Free Spreadsheet Programming Material
Free 16 and 32 Bit Software Demo Versions
Free Spreadsheet Demo Versions
Free 16 Bit Fully Functional Software
Free Energy Conversion Plots
Free Energy Conversion Webinar Type Plots
Free Short e-Seminars (Webinars)
Free Energy Conversion Plots Hosted by Google Picasa
Free Engineering Formulas/Equations
Free Conversion Factors
Free Schematic Layouts
Free Energy Conversion (EC) Systems
Free Tech Description
Free Tutorial
Free and Open Energy Conversion Discussions
Free Energy Conversion Blogging Hosted by Coggno.com
Free Energy Conversion Google Group
Free General Computer/Programming Support
Free e-Mentoring
Free e-Catalog
Free e-Newsletter
Free Software Form 
Free Spreadsheet Form
Free Services Form