HTML
This is an old school website, built with HTML and perhaps some Javascript, this type of website is usually custom crafted by a website designer. They likely use website building tools like Adobe Dreamweaver, and, if they are truly crafting your website from scratch, there will truly be not other website like yours.
I’ll include PHP or ASP custom websites in this category if they custom built and are not pre-built scripts.
Wordpress
WordPress is a blogging platform, but you can build a nifty website with it. There are other blogging platforms like WordPress, but WordPress is the most popular. WordPress is open source software, which means that it’s free to use. Your look and feel are determined by your Theme. Many Themes can also be downloaded for free, but you can also pay $100 or more for a premium Theme. You can build in functionality by adding Plug-ins. Plug-ins allow you to have sophisticated functionality on your website, like ecommerce. The price of Plug-ins varies, depending on what they do and how well they are supported. Learn more at WordPress.org.
Website Builders
Many shared hosting company offer a website builder that can create a competent website. These are typically menu driven websites that do not require that you know how to program. You pick a look and feel (style), and then populate pages with words and content.
Google Apps or Office365
If you use Google Apps or Microsoft’s Office 365, you have the ability to create a simple website very easily. This service is very much like the website builders offered by hosting companies (see above), so it probably won’t win a style competition. It will, at best, be adequate.
Ecommerce Software or Service
There are a number of good ecommerce service providers on the market. They provide everything you need for an ecommerce website, including the program, hosting, and plugins that provide tax and delivery functionality.
Facebook or other Social Media Pages
You don’t really need to have your own dedicated website. If you are a small business in a competitive space, you may want to save the money and opt for a Facebook page or a Google+ page. If customers find you mostly through local search, then you could save a lot of money by NOT having a dedicated website.