Network Overview Widget in the Network Dashboard
Adds a widget to the Network Admin dashboard with totals for sites, users, archived, spam and deleted sites, and the five newest sites.
Snippet Library
Multisite snippets for WordPress
Snippets for WordPress Multisite networks: network-wide settings, new site defaults, super admin tools and cross-site tweaks. For network administrators who manage many sites from one install.
Only Logged-In Members Can Create New Sites
Keeps the network's signup form open for new user accounts but only lets people who are already logged in create a site, cutting down on spam sites while staying open to new members.