Publishing will make your map available on the internet with an unique URL just like a small website or article. If it becomes popular enough we will also list it in our public map directory: www.mindmeister.com/public
You can publish your map from your dashboard or from your map editor. To publish from the map editor please follow these three simple steps:
1. Click the Share button in your map footer to open the sharing dialog.
2. Click the Publish map... button and confirm in the next dialog.
3. There is no step three. Your mind map is already available to everyone on the internet. It's up to you now to make it popular by sharing it on your website, blog and social media. The Sharing settings dialog is explained in detail here.