Looking for a free and simple way to get a basic site up? Here are two webapps that can help. Both DropPages.com and Pancake.io use a shared Dropbox folder to host your web pages, making creating and editing your pages very quick.
DropPages works similarly but adds a few different features, such as website themes, friendly URLs (yourname.droppages.com), auto-generation of navigational elements (so all your pages in the DropPages folder are linked), and custom domain names (you can use IWantMyName.com to buy a custom domain and point it at DropPages or configure the CNAME record at your domain registrar to do that; a custom domain and up to 1GB of space costs 5 pounds a month). Pages are formatted using Markdown, but you can also use HTML.
Note that with both services, you're subject to Dropbox limits on data transfers. For free users, it's 10GB per day and for Pro, 250GB. Users whose Dropbox public links go over these limits will be automatically suspended. So these webapps may be really cool for hosting a small site (perhaps something you just share with friends or co-workers), but not for a major website.