BuddyPress

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Nextdoor

A next generation user profile and social networking plugin for WordPress. PeepSo allows you to quickly and effortlessly create a social network and online community with you WordPress-powered site. The foundation of PeepSo is 100% free and gives you the basics to create a functional community. For more advanced features, there is a extensions ecosystem for both free and premium plugins that can be used to add more functionality and features to your site.

MemberPress is a premium WordPress plugin that allows you to instantly start charging your users for access to your content. The MemberPress plugin integrates with the most common payment provides and third-party services.

Ultimate Member is a WordPress plugin offers a wide range of features including user profiles, member directories, user registration and login, user role editing, content restriction.

Kickstarter is a global crowdfunding platform where independent creators and passionate backers come together to bring new ideas to life. The platform has help people make film, music, art, theater, games, comics, design, photography and technology come to life. Any company can start a kickstarter campaign and start promote their idea. If the idea get tracktion and enough people fund it, it is time for the creators to get to work and deliver the product or service they have proposed. To-date, Kickstarter has help over 17 million backers to fund over 500,000 projects.

With Meetup you can discover the things you love and meetup with people with similar interest online or in person. People use Meetup to build a career network, share interests and ideas in communities and create personal brands and social awreness around topics. Anyone can create events with Meetup and expand their network and knowledge with the help of others. The Meetup app is avalible in your web browser and for Android and iOS.