Kaseya
Kaseya provides high-tech data backup and remote tech support services to computer consultants. Their services are rebranded and sold by the consultant as a private-label service.
Managed Services Provider University
MSPU offers business webinars, forms, tools and more for IT providers.
CompTIA
MSP Business Management
MSPbusinessmanagement.com is a resource site for Managed Service Providers for both small and medium businesses.