ObjectGraph Dictionary

I need to be clear about this. This is by no means the best online dictionary. It's the best, most user-friendly, dictionary application. For more authoritative word definitions, go to Merriam-Webster or Dictionary.com, both of which are great resources.

ObjectGraph Dictionary makes the list because it acts the most like a paper dictionary, only a lot faster. It uses the type-ahead technique, which Google made famous with Google Suggest. I found it interesting when used by Google, but ideal when used by a dictionary. If you haven't seen this type of application yet, prepare to be impressed.

http://www.objectgraph.com/dictionary/