BuddyPress: Hide Administrators' Activity From the Stream
Keeps activity created by administrators (such as testing posts and profile edits) out of the public activity streams.
Snippet Library
Users snippets for WordPress
Snippets for user accounts, roles and profiles: extra profile fields, new columns in the users list, last-login tracking and tighter control of what each role can do. Handy for membership sites, client sites and teams with many authors.