cPanel is the most widely used Control Panel instrument on the web hosting market. It is feature-rich and it comes with an easy-to-use interface which will offer you full control over your web sites. It is simple to handle files, emails and databases, take a look at usage statistics, install script-driven apps, etcetera. This software is preferred by many hosting companies, due to the fact that it also has a reseller counterpart named WebHost Manager (WHM). This instrument will provide you with a web-based graphical interface, via which you'll be able to manage a lot of server-side settings, generate web hosting plans or new client accounts and modify their features with only a few clicks. You can also set up different modules and apps, change DNS records, brand all of the cPanel accounts that your clients will get, add and remove features from their Control Panels, and many others. cPanel and WHM are compatible with the vast majority of billing applications out there, so this is among the best platforms when you want to become a reseller.