DeweyDigger is a very interesting site that is designed to categorize the web via the Dewy Decimal system. It works very much like a search a engine and the results are a combination of articles, pictures, and videos. Another feature I like is that a user has the ability to share their results page via a uniquely generate URL.
Click here to view the results from my search on the terms "technology/Education/Internet"
I highly recommend checking out DeweyDigger by clicking here!!
For another excellent review check out Richard Byrne's wonderful blog.