Domains 

A domain name—such as “nocode.com”—is essentially the address of a person or an organisation on the Internet. It is where other people can find you online, and can also become your online identity. Fore more information about domains and how to connect them to your website check out this link.  
Hover has a cracking selection of domain names with a huge variety of options. Some domain registrars bombard its customers with numerous advertisements and product offerings, which makes for an overall sour experience. Fortunately, this is not the case with Hover. Hover's domain name registration process is very quick and easy, making it extremely easy to point your DNS records to your website. 
Domainr helps you find the perfect name for your company or project by exploring the entire domain name space beyond the ubiquitous domain name brokers. Also check out Domainr’s iPhone app to search for domains on the go.
Domain and Compare gathers details for 1990 top level domains across more than 30 registrars. Up-to-date domain prices, coupons and a lightning-fast availability checker provides the easiest way to find cheap domains. Basically a price comparison site for domain names. 
Cactomain was born from the idea of simplifying the domain registration. Cactomain has abolished the often difficult to find auto renew disable technique other domain brokers have adopted and instead look to provide an honest simple approach to buying a domain name. It seems Cactomain has spent a lot of time designing the website, making it as simple and easy to use as humanly possible.
Nuage is a simple interface that allows you to buy, import and manage your domain names in just a few clicks. Goodbye lost domain names; we activate auto-renewal when you buy the domain. If you wish to cancel the renewal, you can do so in 1 click. Nuage is not a registrar but an app that aggregate your domains from multiple registrar to the same interface. They focus on the domain experience in general, and provide tools that make everything way easier no matter the registrars you use. 
Sedo is slightly different from the other domain brokers featured as Sedo allows your to bid in an auction style forum. If you are lucky and keep an eye on the price you can find a great bargin here! But try not get too carried away and do your research before purchasing your domain! 
Instant Domain Search is a fast and free service for finding great domain names. Instant Domain Searches multiple domain brokers at once saving you time. Find domain names instantly by searching as you type. ​

If the domain name you are looking for is taken, you can click WHOIS to find out who registered it or the URL to visit the website and make an offer. 
​One of the largest domain name brokers in the market. Simply enter the domain you are looking for and Go Daddy will provide you a list of alternative extensions. If you don’t see your right domain staring back at you, focus your search results by using the price, length, extension and location filters. 
Another large player in the domain brokering industry. I have used 123 Reg for years and can't fault it. My only criticism is it's not the cheapest of options on the market. A simple search facility makes the website easy to navigate and point your domain once ready. ​