Data safety - Backup important information

No one wants to lose their precious work because of a technical error but how to go about saving your data? The websites included in the list are all about data safety. The list includes websites that offer software for data safety so that you don't lose important data due to a technical error. Other websites in the list are related to software companies that not only create and develop data safety software but also develop other software. Some website in the list are about companies that offer data safety for hard drives and data safety monitor boards. Please feel free to edit the data safety list by adding a website along with a short summary for each website you add.