Resource Monitor helps you quickly identify the cPanel users on your server that are using the highest amount of server resources. It filters high resource cPanel users based on CPU usage
SpamScan analyzes the IP addresses used by your mail server to send out email messages, and checks them against 18 major DNS Relay Blackhole Lists or “RBLs”.
LiteSpeed Web Server (LSWS) is an Apache-interchangeable, high performance, secure, and easy-to-use web server able to handle thousands of concurrent connections with a small memory
WHMXtra is an addon module for cPanel servers. It is designed to add a little kick to WHM, adding many features you could normally only do via command line or in some cases
WHMSonic is the most powerful Shoutcast Control Panel and WHM/cPanel plugin, intended on making your life easier. You can install it on your server in seconds