If you prefer a more traditional URL, you'll need to purchase one from the likes of GoDaddy or Namecheap. Domain name pricing can range from extremely cheap to extremely expensive, depending on whether or not domain squatters are looking to flip a valuable piece of online real estate. You'll want to get something short but evocative and catchy, and depending on what you do, you may find that many of your first choices are taken by either other legit domains, or by squatters who've scooped up the names as an investment. For more, please read How to Register a Domain Name.
Even if you don't sign up for those web hosts, you should look for services that offer similar features. You'll want a WYSIWYG editor that lets you adjust every page and add images, video, and social links. Plunking down a few extra bucks typically nets you robust ecommerce and search engine optimization (SEO) packages for improved Bing, Google, and Yahoo placement. Most advanced web hosting services include at least one domain name, free of charge, when you sign up.
A website is a collection of many types of content. Your website can contain a collection of content including blog posts, product descriptions, images that highlight your product, explainer videos that tell your story, and contact information. These different types of content have one thing in common. Each piece of content has seconds to capture the attention of your audience.