A TLD, which stands for top-level domain, is simply the technical term for the part of the domain that comes at the end. The most frequently used top-level domains are .org, .com or country-specific extensions like .co.uk. Since November new top-level domains have been launched, which are more creative and industry-specific, like .graphics, so, essentially, new TLDs are just more creative versions of the old commonly used TLDs. You will still need to choose a domain name for your website, which is the part that comes before the TLD. Think of a new TLD as a special addition to your domain name, if you don't choose a new TLD you will have to choose between .com, .org, or a country specific extension. Or, you could try something a little different and chose a new TLD that will strengthen your brand identity, and make your domain name specific to your industry.