11 free tools to protect your online activity from surveillance. The documentary Citizenfour, which debuted to a limited release on Friday, offers the closest look yet at Edward Snowden, the whistleblower who exposed the National Security Agency spying scandal. In the film, Snowden and the journalists he works with go to great lengths to shield their correspondence from unwanted eyes. Though Laura Poitras' film explores a very extreme circumstance — a massive leak of top-secret information to the press — it's as good a reminder as any that we live in a time of widespread government surveillance, and you can't be sure who's intruding on or monitoring your Internet activity and communications. You might want more privacy online for any number of reasons — you could be a journalist reporting on a sensitive topic, like Poitras and Glenn Greenwald, or you might just want more peace of mind in light of the NSA revelations. 1.
Tor is a free software program that allows people to use web connections anonymously. Where to get it: Direct download 2. 3. 4. 5. 6. PDFfetch.com - PDF search engine. Search Results. OALIB_Open Access Library. Visual search engine. Search-cube. SEO Keyword Graph Visualization | SEO Browser. Use this free Java application to explore the connections between related websites.
Try it now! Enter keywords or a URL, and click 'Graph it! ' See Getting Started below for more details. Getting Started Make sure you have the latest version of java, at least Java 1.5 Type in your search keywords or a URL, and press "Graph It! " Say "Run" when asked "Do you want to trust the signed applet? " Sample Searches: Visual Search Engines. Twurdy. DoodleBuzz. Boolify. DuckDuckGo. Evri. Hakia.
WolframAlpha. 10 Amazing Uses for Wolfram Alpha. You may have heard of Wolfram Alpha, which is a “computational knowledge engine.” That makes it sound a bit scary, but it’s a great tool once you can wrap your head around it. Apple’s Siri uses Wolfram Alpha for 25% of its searches. You can leverage that magic and put Wolfram Alpha to work for you — the empty search box on its homepage holds endless possibilities.
Comparisons Enter two terms with a vs in between them and you’ll get a comparison. You can compare cities, books, foods and almost anything else you can think of. Nutrition Information Enter a type of food and Wolfram Alpha will provide you with its nutrition information. Complicated Math Wolfram Alpha is ideal for the sort of math that Google’s calculator and most other calculator websites will choke on. Where Am I? Ask where you are and Wolfram will use your IP address to track you down. Days Until Something Want to know how many days are left until your birthday, favorite holiday or any other date? Generate a Password Am I Drunk?