Large amount of info related to each keyword which can be retrieved by Search Engine and by hypertextual links. Multimedia facilities available. Resources are updated daily.
Merriam-Webster is a US publisher of language-related reference works. The Merriam-Webster Online Dictionary is integrated by Britannica Encyclopedia contents
Complex archive with multiple hyperlinks and connections between concepts. Detailed metainfo descriptions. Some contents are also provided in multimedia formats and podcast features
Good density of information for each keyword which is described from different and interactive concepts. Good hypertextual architecture, also external
A general-purpose dictionary, Webster online does nonetheless provide a good description of political science concepts
Keywords and concepts are updated daily as in "The word of the day" section