If you are in luck, the person whose email address you seek has posted an article on usenet within the past year, in which case a record of their name and email address will be found in this database. Just use their name as a query.
Many sites are now on the web.
If you know at what institution the person works, you should try to visit their WWW server. Somewhere on that server you may find a phone directory or other information about personnel or faculty. Visit the Gopher server at their site Look for it in the list of known gopher servers Proceed as above. InterNIC In particular, the White Pages For example, try Netfind with queries of the form name institution , or name hostname . Take the time to read their documentation.