Tweetbot - Sync your timeline across your iPhone, iPad, and Mac. Mute tweets by user, hashtag, tweet source, or keywords (including regex). 3rd Party support for image, video, read later, and timeline sync services.
eXo Platform - Digital workplace solution
TweetDeck - TweetDeck is your personal browser for staying in touch with what’s happening now.
Basecamp - A simple and elegant project management system.
HootSuite - Enhance your social media management with Hootsuite, the leading social media dashboard. Manage multiple networks and profiles and measure your campaign results.
BuddyPress - WordPress social networking in a box.