Once I’ve created an account with an email address, will I be able to change that email address in the future?
Also, once I select a Blockstack username, will I be able to change that?
Lastly, where can I find information regarding the domains, personal.id and something.blockstack or whatever? Can you create websites for these domains with typical programming languages (HTML, CSS, JS, etc)?
The Blockstack browser only uses your email to send you recovery information once. It doesn’t tie your email to any of your Blockstack IDs. You’re free to re-use emails and create as many usernames as you like.
Currently you cannot use Blockstack domains to host websites. But it’s a feature we’d like to build out in the future.