Heibonsha World Encyclopedia

The content changed very little between these two editions, but the latter version was published on heavier paper and included several additional indexes and supplementary volumes.

The Heibonsha Encyclopedia is no longer being published in a print edition, and is instead being produced in the above-mentioned DVD and Internet formats.

Netto de Hyakka is constantly updated and therefore provides the most current information, but the majority of articles have not been significantly altered from the text edition.

The current version of Netto de hyakka (ネットで百科@Home) is called the Network Encyclopedia in English, and is provided by Hitachi Systems and Services.

Beginning with the 1988 edition, the encyclopedia has included an index in Western character sets for more convenient searching of foreign words.