This will ensure that any submissions are not overlooked.
If you are not familiar with git pull request and want to just submit a minor correction or a new link, just open an "issue" in github. If you would like to contribute to this list, please submit a pull request. The target audience of this list are those that are interested in learning about mainframes with emphasis on the System/360 and it's descendants. Awesome list of mainframe related resources & projects.