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Semantic Web technologies have immense potential to transform the Internet into a distributed reasoning machine that will not only execute extremely precise searches, but will also have the ability to analyze the data it finds to create new knowledge. This paper examines the state of Semantic Web (also known as Linked Data) tools and infrastructure to determine whether semantic technologies are sufficiently mature for non-expert use, and to identify some of the obstacles to global Linked Data implementation.

This is a fabulous introduction to using Diigo in schools. "Welcome to Student Learning with Diigo. This site was completed in partial fulfillment of the requirements of of ISLT 9440, Learning with the Internet, a graduate class, during the Fall 2010 from the University of Missouri. Educators, worldwide, have enjoyed the use of this social bookmarking site. Diigo is a great web-based tool for teachers to utilize, to motivate, and to engage students of all ages in the learning process. We invite you to explore the various features of Diigo. Become educated and informed on the powerful use of Diigo for student learning. Learn how this research tool can enhance classroom instruction and promote higher levels of student collaboration. As you navigate through our site you will see examples of valuable lessons and resources, all displayed for your use. Set up your account now. This research tool is every educator's dream."

Fabulous section on middle and high school

"PrintFriendly cleans and formats web pages for perfect print experience. PrintFriendly removes Ads, Navigation and web page junk, so you save paper and ink when you print. It's free and easy to use. Perfect to use at home, the office, or whenever you need to print a web page."

"From simple charts to complex maps and infographics, Brian Suda's round-up of the best - and mostly free - tools has everything you need to bring your data to life."

This neat tool from Google, ChartTool is a simple-to-use chart-making service that lets you simply paste in your data and play around with how it looks. It's never been easier to whip up charts that are actually easy to use and update. In fact, embedding these charts on web pages is quite simple thanks to the embed API. You can even make QR codes in just a few seconds and quickly get an embed code to add it to your website. While ChartTool does not create as many of those fancy 3-D charts that Excel does (it still makes quite a few), it likely will be able to in the future. However, if you're in a rush and need to whip up some exact charts without all the fluff, this is the tool for you.

"A picture is worth a thousand words, but creating cool infographics can be time-consuming. So we've found 33 amazing tools to make it easier."

"WackWall is a free tool for creating custom social networks with easy setup and complete feature set. " It has # Photo, Video sharing; # Blogs, forums, friends; # Comment, tag, rate any kind of content; # Privacy and profile customization; # Groups; # Events, wiki; (coming soon) # Collaboration, file sharing, video-conference tools; (coming soon) # ... and much much more!

"Greenshot is a light-weight screenshot software tool for Windows with the following key features: Quickly create screenshots of a selected region, window or fullscreen; you can even capture complete (scrolling) web pages from Internet Explorer." "

This excellent site begins with an overview of the WWW before looking more closely at Search with annotated lists of search tools and techniques as well as an extended discussion on the Deep Web and keeping current.

Screenr is a free web-based tool from Articulate that lets you create screencasts without installing any software. There is nothing to download, it plays on everything including iPhones and it is free.

Online backup, file sync and sharing made easy.

Fascinating tool, I am surprised how will it seamlessly integrates with my iPad, OSX desktop and Macbook.

"BlastFollow enables you to follow Twitter users who share your interests en masse. This web site is a production of Triangle Information Solutions. To use BlastFollow, simply enter a favorite hashtag (for example, "americanidol") in the box below. Then, click the "Get Users!" button. After a few seconds, you will see the number of users who tweeted with that hashtag recently. Then, you need only enter your Twitter name and password and click "Blast!" You will start following all of those users. You can usually see the progress on a user-by-user basis."

"One of Google Chrome's best features is its minimalist interface. The browser also already has many built-in features that satisfy even the most advanced web users. In order to keep Chrome's uncluttered user interface, it's best to avoid installing too many extensions. Here are the five essential Chrome extensions you should use for a better browsing experience."