MAMP - MAMP is the abbreviation for Macintosh, Apache, MySQL, and PHP. It is a reliable application with its four components that allows you to access the local PHP server as well as the database server (SQL).
BitTorrent - BitTorrent is a peer-to-peer program developed by Bram Cohen and BitTorrent, Inc.
Apache HTTP Server - Apache httpd has been the most popular web server on the Internet since April 1996
Soulseek - Soulseek® is a unique ad-free, spyware free, and just plain free file sharing application.
Apache Tomcat - An open source software implementation of the Java Servlet and JavaServer Pages technologies
Shareaza - Shareaza is the most luxurious and sophisticated file sharing system you'll find.