While there's a lot of multi-step processes to editing the Hosts file, one of the easiest for people with BBEdit is:
1. In the Finder, go to the "Go" menu and select "Go to Folder...", then enter:
/private/etc/
2. Then drag the "hosts" file to BBEdit. You may also want to create an alias to the hosts file on your desktop or somewhere if you want to get to it quicker later.
3. Start making a change and BBEdit will prompt you to Unlock the document. Then when you save, BBEdit will prompt you for your root password.
