This is a link to the homepage Perfect Software, the company distributing the multilingual dictionary Polyglot. I worked there for 2 years and I am deeply convinced that this is the best computer dictionary on the Bulgarian market. Take a look at the Gold Medal certificate as well. More information online at http://polyglot.persof.com/en/index.php
Bulgarian Assosiation for Computational Linguistics
Project Gutenberg (official site) and shorth introduction for Bulgarian volunteers.