elearning可以分为四个类别，从最基础的到最高级的。他们分别是：
知识库：尽管这种类型并不能被看作是真正的培训，但是仍然可算为elearning的基本形式。你可能曾经在软件公司的网站上看到分类的关于软件产品的解释说明和各种问题的解答。这些内容附带了一步一步详细的操作说明。
知识库在一定程度上具有互动性。因为你可以用关键字来搜索数据库，或者在列表中选择你要的内容。
在线支持：在线支持可算是另一种形式的elearning，他的功能有比较像前面提到的知识库。在线支持可以有多种形式，比如论坛，聊天室，电子邮件或者在线聊天软件等。相比知识库，在线支持的互动性要更强一些，他可以提供对更加详细的问题的解答，以及更快的回复速度。
什么是elearning？先让我们来看看我们如何才可以使用到elearning吧。只要你有一台设置正确的电脑，你就可以在任何地点和任何时间使用elearning。就像如果你有一部设置好的电话就可以让你在任何地点，任何时间打电话一样。
elearning可以是基于光盘的，可以是基于局域网的，也可以是基于互联网的。他可以包括文字，视频，音频，动画和虚拟现实。他能够提供的学习的丰富性将超过我们在拥挤的课堂中能够体会到的。
就像任何其他形式的培训一样，elearning课程的质量，在于他的内容和传达方式。elearning也有和传统课程授课一样的很多缺点，比如说乏味的幻灯片，单调的解说，和很少的互动的机会。而elearning的美正是在于当前的很多新型的elearning制作软件可以创造出有效的学习环境来将学习者包围在学习材料中。（原文链接）
elearning的概念：
The delivery of a learning, training or education program by electronic means. E-learning involves the use of a computer or electronic device (e.g. a mobile phone) in some way to provide training, educational or learning material. (Derek Stockley 2003) （link）
纽约时报的网络课程站点，以blog的形式表现出来，还有小测试。也算是很好的形式了。界面很清新，值得学习。
May 22, 2009 , 12:00 am
Critical Lenses
By Amanda Christy Brown AND Kristin McGinn Mahoney AND Holly Epstein Ojalvo
Note: This lesson was originally published on an older version of The Learning Network; the link to the related Times article will take you to a page on the old site.
Overview of Lesson Plan: In this lesson, students examine several iconic photographs and those featured in the Times Lens blog to generate criteria for what makes for a great photograph. They then use a selected Lens post as a model to create their own photo essays for exhibition in a classroom show. Click here for a companion lesson for Grades 3-5.
"Parlez-vous francais?",
"Parla italiano?", "¿Hablas Espanol¿" or "Do you speak English?" - Knowledge of a foreign language is advantageous, both professionally and when on vacation. The writer Frank Harris once said: "Every new language is like an open window that shows a new view of the world and expands your attitude towards life." German mobile learning expert, mobilinga, offers modern applications for the iPhone and iPod touch, which make it possible to learn a new language with ease. For as little as $2.99, the programs from the "mobilinga travel" line can be downloaded in the US and Canadian App Store.
The mobilinga learning applications each contain approximately 1001 sentences from different areas of life such as shopping, hotels or restaurants. The selection includes lessons in Latin-American Spanish,French, German and Italian.
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