1. A computerized system for sale of non pre-catalogued products having non pre-catalogued parameters in a multi-lingual environment wherein a buyer and a seller each communicate in a different language, the system comprising: a non pre-catalogued product database including: a multiple language product parameter table including selectable pre-translated parameters; and a multiple language product parameter value table including selectable pre-translated values corresponding to said pre-translated parameters, said multiple language value table being displayed together with said multiple language parameter table; at least one server computer connected to said non pre-catalogued product database, said at least one server including: a non pre-catalogued product listing engine configured to prompt, in a first language, a listing seller to select in a structured manner at least one of said parameters appearing in said first language relating to a product to be listed and to select at least one of said values appearing in said first language and corresponding to said selected parameters and to store selected ones of said parameters and selected ones of said values corresponding to said selected parameters in said non pre-catalogued product database to create a listed product in said first language; and a non pre-catalogued multiple language product description engine configured to provide for each said listed product, human-readable descriptions of said selected pre-translated, non pre-catalogued parameters and corresponding selected pre-translated, non pre-catalogued values in at least one language different from said first language, said human readable descriptions corresponding to selections of said non pre-catalogued parameters and values made by said listing seller using said first language; and a display providing to a customer, different from the listing seller, said human readable descriptions of said listed product in said at least one language different from said first language in response to a customer query.