Hosting your site at a shared provider can make or break your business. If customers are trying to access your site, and get a Server not available message they are more like to look elsewhere. At Hosting Zoom they have implemented a new cluster technology that distributes the loads of a shared host across multiple servers. They mirror their email,databases, and websites in real time, in the event of problem, to help keep your site active.

Here is a great visual on how the technology actually works

They have plans starting at $7.95 per month with loads of features that you would expect from higher end plans. You can even host up to 20 websites on one account.