Here is a link to WERTi (Working with English Real Texts)
To use it. Click on the type of English text you want enhanced. For example, on the left side you can click on articles. Then select the type of enhancement desired such as highlighting.
Here is an example of a Washington Post technology article: Limit not a word in Apple’s vocabulary
Here is another example from my blog: Unburritable
Although it doesn’t work with every website, it does work with the Washington post website and Word Press blogs. Thus, if an instructor was keeping a blog with examples for students to read, they could give an un-textually-enhanced link and another one with the textual enhancements.
Here is a presentation with more examples of textual enhancements on the web using WERTi.