What type of backup do you use for your server?

What server backup solution do you use for your business? I am confused with various solution’s available. I run a small business. We provide training for students and also provide assistance in their projects. We are about to start a new wing where we will have clients from abroad and we will be working on various projects for them. We will be developing websites for handling the work and other activities. I wanna make sure that the data’s are safe. I don’t want to lose anything. One of me friends told me about this offsite server backup provider called Storagepipe Solutions. Is anyone using their service? It will be nice is if someone can put up a good list from which I can choose.