This is where it all begins. Register your domain name with a reputable and reliable registrar (see what I did there?).
I like using Hover because they are super easy, very little upselling, reasonably priced, and offer private registration included with most domain names.
Your webhost is the engine that runs your site. You’ve probably just spent a dumptruck full of cash getting your beautiful site built. Make sure it’s hosted where they’ll treat it right.
I like using WP Engine because their sites load really fast and their service is top-notch.
Possibly more important than your website, email is your connection to your co-workers, vendors, and clients. This is not a place you want to skimp.
I recommend the best of the best, Google Apps for Business. Google gives you not just email, but awesome collaboration tools such as Calendar, Docs, and tons of space with Google Drive.