There are several dictionaries of Internet terms on the Web. For instance, for French (fr), German (de), Italian (it), Portuguese (pt), and Spanish (es) the following are available:
Grand dictionnaire terminologique
NETGLOS - français|
|en-de||Internet-Glossar by Erpel Verlag|
NETGLOS - Deutsch|
ATO Italia: Glossario per le reti Inglese-Italiano
NETGLOS - italiano|
Dicionário do Internetês|
NETGLOS - Español|
NETGLOS, a multilingual glossary of Internet terminology
WorldWide Language Institute.
dictionaries of Internet terms in some other languages, too.
The choice of languages here was motivated by the AltaVista Translation Service, announced in December 1997, for those languages. See also the preface to my Learning HTML 3.2 by Examples.