Let Site Admins Edit Their Own Site's Users
Allows site administrators to edit the profiles of users who belong to their site, which multisite normally reserves for super admins.
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.
List a User's Sites on Their Profile
Shows super admins every site a user belongs to, with their role on each, at the bottom of the user's profile screen.
Primary Site and Profile Links on Network Users Rows
Adds two hover links under each user in Network Admin > Users, one to the dashboard of their first site (with their site count) and one straight to their profile.