WildApricot - WildApricot is a powerful cloud software to help you automate and simplify membership tasks.
Yoast - Yoast offers plugins to improve SEO and optimize web sites and blogs.
Memberclicks - MemberClicks provides website and membership management solutions to small-staff membership organizations.
Jackmail - A newsletter plugin for Wordpress.
YourMembership - YourMembership provides membership management software integrated with social networking features.
Wordfence - Comprehensive security plugin for WordPress.