Refined Twitter - A browser extension that improves the Twitter experience
Toolset.com - The complete and reliable plugin for managing content types in WordPress.
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.
Hypefury - No idea what to share on Twitter?
ilo - Premium Twitter analytics
What to Tweet - Never again run out of Tweet ideas.