The NotesOn Publish plugin allows users to export Obsidian notes as HTML files and host them on the NotesOn.ru server. This plugin is particularly useful for creating and sharing content, such as portfolio websites or public documents, directly from Obsidian. Users can quickly publish their notes by right-clicking and selecting the 'Publish to NotesOn' option, which generates a public URL that is automatically copied to the clipboard for easy sharing. Additionally, the plugin provides the functionality to remove hosted notes from the NotesOn server using a similar right-click menu. It streamlines the process of converting notes into shareable web content while maintaining simplicity and efficiency.