You could think of the sites that share your server as your roommates; there's really not that much separating you from them. Sure, you can close the bedroom door, but they can still cause nightmares for you in the kitchen and the bathroom. In web hosting terms, all the sites share a single server's resources, so huge traffic spike on Site A may impact the neighboring sites' performances. It's even possible that another site could take down the shared server altogether, if it crashed hard enough.
WordPress is the platform of choice for large and notable companies, including TechCrunch, the New Yorker, and BBC America, and it has even supported powerful global movements. Now powering roughly 27% of the internet, WordPress is far and away the most popular website-building and management software. Because WordPress is such a popular choice, most, if not all, web hosts will offer integrated WordPress as a feature.
One great way to protect data is by using email encryption. This feature can do wonders for protecting your organization's privacy and that of your employees, but it demands some investigation when you're selecting your provider. Is it built-in or do you require a third-party tool? Does it use common standards that the recipient can process? What about Secure Sockets Layer (SSL) certificates? Are they included or do they need to be purchased separately? The best-in-class tools will not only make encryption easy for anybody to configure and use, buy they'll also make it easy for you to understand pre-purchase.
Ultimately, it boils down to a balance between cost, features, and risk. It's always tempting to simply jump on the lowest-cost solution, but the fact that email is ubiquitous keeps this from being the smart play. It's nearly impossible to escape using it, which means your users, your customers, and the guts of your business have all come to depend on it in different ways. You need to discover those ways, evaluate them, and then choose a service that either meets or improves on them. This takes time, discussion with your IT staff, and some investigation; these are steps you don't want to skip. Otherwise, you'll pay for it later.
If you want the security and privacy features of the above solutions while not paying too much, Rackspace offers the best alternative. In fact, they claim “256-bit Encryption in transit and at rest.” Rackspace offers a basic plan at $2/user/month, with huge 25 GB mailboxes, 30 GB cloud storage and unlimited email aliases. You can run your emails from Apple Mail, Mozilla Thunderbird and Microsoft Outlook.
The web hosting provider offers solid plans with a good selection of features. The one area we're concerned about is how it presents its offers. Like many hosting providers, its published pricing is a bit misleading. You're not getting hosting for $2.96/mo unless you pay $71 for two years of service. Renewals are generally at a higher rate, although a salesperson we spoke to advised you ask for a "loyalty discount."
Your next major concern will be compatibility. It's not a shock that most businesses run on Microsoft Windows and use some form of Microsoft Office. Being able to use common third-party clients such as Microsoft Outlook can often be a concern, and even today, compatibility with Microsoft Outlook isn't necessarily guaranteed. This is especially true when sending and receiving meeting invites. It only takes one garbled meeting invite to realize how frustrating this can be in the real world. Even if using Microsoft Outlook isn't a concern, portability is. If the service is entirely web-based, then is there a means for me to take my email offline and send email when I connect?
If you're not sure of the type of hosting your business needs, you might want to start small, with shared Web hosting. You can always graduate to a more robust, feature-rich package of, say, VPS hosting or even dedicated hosting in the future. Unfortunately, some hosts don't offer all hosting types. Consider how much you expect to grow your website, and how soon, before you commit to anything longer than a one-year plan. It's worth spending the time up front to make sure that the host you select with is able to provide the growth you envision for your site, as switching web hosting providers midstream is not a trivial undertaking.