"Forbidden You don't have permission to access /wp-admin/ on this server. Additionally, a 403 Forbidden error was encountered while trying to use an ErrorDocument to handle the request."
I contacted GoDaddy, as they keep the registration of my domain, and they responded:
"Thank you for contacting Online Support. I understand you are concerned about the site not resolving. Testing the account we found the .htaccess file is the cause of the issue. The file is scripted to block all access to the site content. When disabling this file by renaming it a new .htaccess file was automatically added with the same script. We then disabled the script by adding a # to the line to omit it. You will need to review your site script and configuration to determine why this is being done automatically and resolve the issue."
This began yesterday. I posted a new blog entry and all was well. Then I updated my pluggins, and this happened. I suspect a connection. I have never used FTP or done anything fancy with this site. I've only used the web interface to change things as I know I'm not competent with this stuff, so this is a bit surprising.