Dead links

free-programming-interactive-tutorials-en.md

@@ -111,11 +111,9 @@
 * [ABC of JavaScript : An Interactive JavaScript Tutorial](http://www.openjs.com/tutorials/basic_tutorial/)
 * [Codecademy jquery track](http://www.codecademy.com/tracks/jquery)
 * [Functional Programming in Javascript](https://github.com/ReactiveX/learnrx)
-* [Javascript Foundations](http://gymnasium.aquent.com/catalog/course/104)
 * [Javascript interactive tutorial on CodeCademy](http://www.codecademy.com/tracks/javascript)
 * [Javascript interactive tutorial on CoderMania](http://www.codermania.com/javascript/lesson/1a/hello-world)
 * [Javascripting](https://github.com/sethvincent/javascripting)
-* [jQuery Building Blocks](http://gymnasium.aquent.com/catalog/course/102)
 * [Learning Advanced JavaScript](http://ejohn.org/apps/learn/)
 * [Learn JavaScript](http://www.learn-js.org)
 * [Learn knockout.js](http://learn.knockoutjs.com)