This paper aims to describe a platform that was created for Spanish government in order to unify the different publishers' web site. Working on the principle that the implementation of each publisher's web site was different from the other, this product pretends to integrate these web sites, without modifying them. The developed application will provide citizens with a search engine in order to allow them to do a publication's search in its entirety, will supply publishers with tools and functions to facilitate the process of manage their own publication database in the system and will connect the joined publications database with the BOE 1 (Spanish Official Bulletin) web-site in order to allow the buy of publications through the payment system of the BOE. KEYWORDS e-government, e-administration, system integration, data integration, web application