There is no source of reference remotely as authoritative as the Encyclopaedia Britannica. There is no brand as venerable and as veteran as this mammoth labour of knowledge and ideas established in 1768. It numbered the likes of Einstein and Freud among its authors. Dozens of classic articles written by such luminaries are available on the Britannica’s Web Site and included in its CD-ROM and DVD editions.
This is the tip of an iceberg of revival of old reference works.
The full text of the venerable 1911 edition of the Encyclopedia Britannica is now available online and is in the public domain. Regrettably, there is no CD-ROM or DVD to be had of this opus magnum written by the best minds at the turn of the 20th century. Nor can one download the Encyclopedia as separate compressed files. Additionally, the transcription is far from perfect with many an article either truncated or mysteriously divided. Still, it is a grand and welcome undertaking.
Another sorely needed contribution is the Jewish Encyclopedia online. The only other project of this scope, the Encyclopedia Judaica on CD-ROM will be withdrawn from the market by January 2006 and is anyhow...