cPanel is the most widespread Control Panel instrument on the web hosting market. It's feature-rich and it has an easy-to-use interface that will offer you full control of your sites. You can easily take care of files, e-mail addresses and databases, take a look at usage statistics, set up script-driven apps, and many others. This software is preferred by many hosting companies, because it also has a reseller counterpart called WebHost Manager (WHM). This instrument will give you a web-based graphical interface, via which you are able to control lots of server-side settings, set up hosting plans or new customer accounts and modify their features with just a few clicks. You may also install different modules and apps, update DNS records, brand the cPanel accounts that your customers will get, create and remove features from their Control Panels, and many others. cPanel and WHM are supported by the vast majority of billing apps out there, so this is one of the top platforms in case you wish to become a reseller.