I have collected a huge list of commercial and non commercial panels/products,I have removed the link ; if you are interested in any of the panels you can google it and surely you will find it, Its updated list. Free PanelsAlternC ASM DTC (Domain Technologie Control) ISPConfig Hosting Control Panel SysCP - System Control Panel VHCS Web-cp Webmin VishwaKarma ZPanel Commercial Panels with Free versions ControlZx HMS DigiPanel Parsv ServerCP VirtualMin Premium/Commercial Panels Alabanza's CP CPanel / WHM Plesk Directadmin H-Sphere iBizPanel Interworx HELM ZOMOS CP+ InsPanel HostingAccelerator Ensimh Etrinix Corp Webhost Panel Hosting Controller HostFlow Ravencore CubePanel XPanel Cwipanel DotNetPanel
nice list, you missed the one of free control panel that I think also most popular, Kloxo (LX Admin) cpanel/whm still the most popular
Still missing Confixx as an Premium admin panel for webhosting. Which is also sold by Parallels like Plesk