At the moment for a Github organisation of mine, potential members have to be manually searched for an added. Is there way a to make your Github Organization public, so people can easily and automagically join your cause?
I am a beginner with Github, but have searched a lot and they don't seem to have this feature. Is it a plugin anywhere?
I see 2 problems, either of which would be nice to fix.
Why can't users request an invite to your organisation, even if you have to manually approve?
Why can't I send out bulk invites to say an email list? Or can I do this?
Thanks Stack Overflow
I don't know why Github doesn't offer anything like this functionality. Github Organisations seem still kind of underdone, and I look forward to them making them more useful. For the moment I have something which can help you with one of your problems.
After needing bulk invite students for a university club I am a part of, I created thundergolfer/automated-github-organisation-invites. It's a Heroku deploy-able web app that allows anyone with access to the URL to get themselves an organisation invite automatically.
It uses the Github API to do basically what you need. You can send out a bulk email with a link to the web app. Job Done.
The problem with the above solution is that you don't get a chance to review who requests an invite. They are automatically added. Perhaps when I get time in the future I can extend the project above to allow you to capture requests and then review them before sending out the email.