Sadly, there is a bit of a "gotcha" to the free automatic backup service. If you're paying $3.95 a month (for the first year of hosting, then $9.95 a month), you don't get restores for free. Each restore, no matter how small or large, will cost you $19.95. I'm not sure how I feel about that. On the one hand, the company has to pay salaries to tech support reps who can handle panicking customers. On the other hand, it seems kind of mean-spirited to hit someone when they're down with an added fee. That said, getting your data back – at any price – is priceless.
Usually a single machine placed in a private residence can be used to host one or more web sites from a usually consumer-grade broadband connection. These can be purpose-built machines or more commonly old PCs. Some ISPs actively attempt to block home servers by disallowing incoming requests to TCP port 80 of the user's connection and by refusing to provide static IP addresses. A common way to attain a reliable DNS host name is by creating an account with a dynamic DNS service. A dynamic DNS service will automatically change the IP address that a URL points to when the IP address changes.
Many services offer a low "starting price," but require you to prepay for two or three years of service to get that price. After the promotional period, the renewal price for some services can be two, three, or even four times the initial promotional pricing. While the initial deal might be incredible, the cost of transferring your site (or paying the added fee) in a couple of years may be something to consider.