cPanel is the most widely used Control Panel instrument on the hosting market. It's feature-rich and it features an easy-to-use interface that will offer you full control over your web sites. It is easy to control files, e-mails and databases, take a look at usage statistics, set up script-driven applications, etcetera. This software is preferred by many web hosting companies, since it also has a reseller counterpart named WebHost Manager (WHM). The aforementioned instrument will give you a web-based graphical interface, through which you can handle lots of server-side settings, generate website hosting packages or new client accounts and modify their features with just a couple of clicks. You may also set up different modules and applications, adjust DNS records, brand the cPanel accounts that your clients will get, create and remove features from their Control Panels, etcetera. cPanel and WHM are supported by almost all billing applications out there, so this is one of the best platforms if you wish to become a reseller.