04: Britannica Online, http://www.eb.com
It is the site of the Encyclopedia
Britannica Online. It is one of the most important sources of encyclopedic
knowledge of the world and perhaps the most important of the Web. They said
Encyclopædia Britannica is the world's most comprehensive reference
product, a distinction it has held since its first publication in 1768.
the complete encyclopedia, as well as Merriam-Webster's Collegiate
Dictionary and the Britannica Book of the Year. You can also
use EB Online to search an Internet directory that includes more than
130,000 links to Web sites selected, rated, and reviewed by Britannica editors.
this service, you can find more than 72,000 articles, updated and revised by EB
editors and contributors; over 10,000 illustrations, including photographs,
drawings, maps, and flags; and more than 75,000 definitions--including
pronunciation guides and word histories--from Merriam-Webster's Collegiate
Important: This service has to be paid 5 dollars per month but you may
get a 30 days free permission to check the whole site. However they offer
almost the same service absolutely free in its associated site: http://www.britannica.com
. We suggest you to register for the 30 days free period in the Encyclopedia to
evaluate if the difference deserves the payment for your needs.