Jo Manly found Websites and Communication Tools by e4education:

• Slightly reduces teacher workload“The website is not really used by teachers, it is a communication tool for parents, prospective parents, alumni etc.”
• Moderately saves school money“Cuts down on the need for stationery, makes the admin process more efficient.”
• Significantly improves school processes“See previous answer. Makes admin processes more efficient.”
• Significantly improves parental engagement“Parents use the website to access latest news and information, download letters, read newsletters etc.”