SpeakOut! Email Petitions makes it easy to add petitions to your website and rally your community to support a cause by using direct action.
Backroomapp is a content messenger. It allows readers of your blog to share and chat privately with their friends right from the content.
Allows users to login or register by authenticating with an existing Google, Facebook, LinkedIn, Github, Reddit (and more!) account via OAuth 2.0.
Vicomi comments is a free comment platform with a new cool, stylish graphic interface that replaces your default WordPress comment system.
Integrates Vanilla Forums with WordPress: embedded blog comments, embedded forum, single sign on, and WordPress widgets.
Turn your site into a developer center, where tasks, projects, discussions, categories and tags will help you maintain products. Powered by WP-BP.com
Photo Albums for BuddyPress. Includes Posts to Activity Stream, Member Comments, and Gallery Privacy Controls.
The Disqus comment system replaces your WordPress comment system with your comments hosted and powered by Disqus.
Add annotations to any part of a blog post. Livefyre Sidenotes allows bloggers and readers to annotate content in a simple, mobile-friendly interface
Livefyre Comments 3 replaces your default comments with real-time conversations. Our social integration features make it easy to capture all the conve
Redirect commenters who just made their first comment to a page of your choice. Allows you to ask them to subscribe, like you on Facebook, etc.
Pushup Social is the easiest way to add a social network to your WordPress site. Simply register a community and enter the ID on the settings page.
The HyperComments technology replaces the native WordPress comment system with comments hosted and powered by HyperComment
Response stack engages with your community by bringing audience comments into your posts.
Help keep your friends and community safe from predators on Twitter by turning your WordPress blog into a Predator Alert Tool for Twitter facilitation
FBtops WordPress Plugin allows you to create tops/rankings of posts based on number of facebook likes, shares or comments they receive. Great plugin!
The WP-SeedBank plugin turns any self-hosted WordPress blog into a community seedbank (or seed library). :D
A feed reader with reblogging features. Includes a recent reblog widget with a link to subscribe to the reblog feed.
Allows users to report inappropriate content across a site's content types.
Sexy Polling - Find out what your audience thinks!
Automated chat available 24/7, no human presence is needed. Your visitors ask everything to your virtual assistant !
Add a list of kids' activities in your neighborhood to your blog.
HootBoard is a cool, interactive bulletin board for your community and your website.
Convatic is a revolutionary social commenting system for websites. This plugin overlays and plays nicely with themes and other plugins. Convatic promo
Social Network for WordPress will keep the users on your website by entertaining them with social networking functionality (friends, likes, activity,
MH Board is bulletin board for WordPress. MH Board available to the community. It’s on your site will create a new space of communication. Will be
Add a forum to your site and allow your members to start their own conversations. Admins are automatically logged in, guests to your blog can choose a
Add the new comment subscription option to the blog comment form.
The mighty YiGG-Button for your WordPress blog
Create verified polls and petitions that enable users to send results to US Elected Officials, Govermt. Agencies, Corporations and 20,000 Journalists