Some random fun facts:
- The frontend "DApp" piece is done with VueJS which has been very fun to work with. It's hosted as a Github Page.
- The backend is done with... there's no backend! The data is directly on The Blockchain, fetched from the browser through a standard-ish API (Web3) provided by your wallet or a gateway.
It's like serverless, but without a server.
Not stating this to be obnoxious, but to be clear - there is a back end for the web page that calls the data from the blockchain ... if (whoever) stops hosting that site or DNS is halted or the domain expires ...
In order to interact with the DApp (buy or publish an ad), you can use a plugin or a wallet app like Mist in order to be able to send transactions to the smart contract. You potentially do it manually by interacting with the contract through a ethereum console and sending the right transaction to the right address, but the browser plugin / app makes the process seamless.
Metamask (the browser plugin) is one - albeit a bit clunky in terms of UX - way of reducing the friction of doing web based ethereum payments, separated from your main wallet
2. Would be great if you could add a traffic counter to the page, so we see how much traffic you guys get.