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Screencast-O-Matic - Free online screen recorder for instant screen capture video sharing.

Make it Easy One-click screen recording on Windows or Mac with no install for FREE! Just click to record. http://www.screencast-o-matic.com/
With a BigMarker Community, teachers can host virtual office hours, and students can collaborate online to make group projects a snap. Hand out assignments and tests. Teach classes online, and record tutorials so students can learn at their own pace.

BigMarker | Meet, Learn, Present with Free, Easy, Unlimited Web Conferencing, Online Meetings, Webinars

http://www.bigmarker.com/

Web Meeting, Document Sharing Free instant and fully synchronized sessions

http://www.showdocument.com/ Share documents online Upload (from your computer, server, web or other source), share, discuss and annotate on a wide range of documents, including Microsoft® Word, PowerPoint®, Adobe® PDF, text, image and video clip files.
http://vyew.com/s/

Vyew

Vyew allows you to meet and share content in real-time or anytime. Upload images, files, documents and videos into a room. Users can access and contribute at anytime. Collaboration features – continuous rooms are always saved and always-on.
http://stupeflix.tv/goldrush88/ Stupeflix TV channel videos are always up to the minute. If the video has not been updated in the last 10 minutes, clicking on play will refresh its content on-the-fly from the real-time web

Goldrush88 - Stupeflix.tv

http://www.onlinecollegecourses.com/2010/10/20/100-incredibly-useful-youtube-channels-for-teachers/

100 Incredibly Useful YouTube Channels for Teachers | Online College Courses

YouTube has earned a reputation for featuring brain cell-slaughtering fare such as the truly abysmal Fred and playing host to the some of the most depressingly stupid comments this side of Yahoo! News. But for every participant liberally dishing out misspelled racist, sexist and homophobic talking points, there is at least one whose channel genuinely offers something provocative and educational. For teachers hoping to infuse multimedia into their classrooms , YouTube makes for an excellent starting point.
synchtube synchronizes media across the web Create public and private rooms and share music, videos, and more, synchronized! Turn your room into a automated TV station, 24/7 radio station, or a simple hangout! http://www.synchtube.com/

synchtube - Enjoy synchronized Videos With Friends

Vector images have not fix resolution, that means they can be boost up to any dimension without loosing the image quality. They are great for print ads, flash animations and designers loved them because it gives great flexibility. So if you are looking for clip-arts, icons or images for your design project, don’t settle for raster images just yet, here’s 50 Websites To Download Free Vector Images .

50 Websites For Free Vector Images Download

http://www.hongkiat.com/blog/50-websites-for-free-vector-images-download/
Social Engage your social graph with SlideRocket's social and audience feedback features to turn your online presentation into a conversation. Learn More Collaborative http://www.sliderocket.com/

Online Presentation Software | PowerPoint Online | Web Presentation | SlideRocket

November 17, 2011 Thank you for participating in our 280 Slides beta program, and your evaluation of our 280 Slides software application. On December 21, 2011 we will be discontinuing this 280 Slides beta program. Please save your presentations created in 280 Slides using the "Download" button to enable you to access your content after 280 Slides is discontinued on December 21, 2011.

280 Slides - Create & Share Presentations Online

http://280slides.com/index.php