kanedo

This widget displays all comments on all blogs on your multi site wordpress installation. You can define how many comments should be displayed.

Get All Comments Widget

Creates a widget which lists all comments across all sites of a multi site wordpress installation

wpriders

Mihai Irodiu

This plugin works on multisite WordPress installs only.
Use this plugin when you need to add a page on multiple website installs of a WordPress multisite without doing this manually.
You have the following options for adding the page: 
* the list of sites you want to add the page to 
* page title 
* page slug 
* page content 
* set the page as Home, Blog or just simple page 
* set a page template
In case your page already exists (has the same slug) on one of the websites, the page title and page content will be updated.
Useful scenarios for this plugin:
<ol>
<li>create a page in Visual Composer and deploy it to multiple sites in a multisite install </li>
<li>set a page as home in multiple sites in a multisite install </li>
<li>set a page as blog in multiple sites in a multisite install </li>
</ol>
<h4>Compatibility</h4>
This plugin requires a multisite install.

Create Pages on Multisite WordPress

Automate adding the same page on multiple installs of a WordPress multisite.

Get All Comments Widget vs Create Pages on Multisite WordPress