Download
RW Reader (Chrome extension)
If you don't install anything else, install this extension. It is the main way to experience the new Web in your browser. Download it here.
LZ Desktop
Large Zoomable Desktop is a zoomable canvas where you can organize files, web links, notes, images, and other stuff — basically a big digital workspace you can arrange however you like.
It’s free, available for Windows and MacOS, and doesn’t require registration.
Keep in mind that it's lagging behind in terms of adoption of Reader's-Web-compatible documents. Some features like sidebars, and comments may be missing.
More info and download links are here.
Reader's Web Publisher (Wordpress plugin)
If you have a Wordpress website, you can publish it on Reader's-Web-compatible pages using this plugin.
To install it go to your Wordpress dashboard. Then go to Plugins>Add New Plugin. In the search box type "Reader's Web Publisher".
Here is a direct link to the plugin.
RW Page Builder
This software allows you to create Reader's-Web-compatible pages on any website. The users don't even need to install anything. All the code and instructions can be found here.
LZ Desktop Helper (Chrome extension)
This extension is a companion to the LZ Desktop app.
With it, you can send links, images, and static documents (HDOCs) directly to your zoomable desktop.
It also detects RSS feeds on webpages.
Additionally, the extension prevents duplicate tabs when opening links from external apps. This lets you use LZ Desktop to navigate your existing tabs instead of creating a new one every time you open a link.