To build a website, you need a domain name and a host server. You can use a site like register.com to search a domain name and see how much you can buy it for. Alternatively, you could find a host site that includes a free domain name in their service fee, bluehost.com and 1and1.com are two examples I have included. Both websites have deals on their services. Currently, 1and 1 is offering the cheapest plan at $0.99 per month for 12 months, then $7.99 per month, for example.