"A serendipity engine on the Twitter sidebar".A "second brain" provides easy access to all the resources you've ever Liked or ideas you've ever Thought. @ExGenesis' Threadhelper brings a subset of this (just Tweets) right into the twitter UX - it looks brilliant.Check out the video: https://www.youtube.com/watch?…

ThinkUp analyzes your Twitter, Instagram, and Facebook activity to give you fun and surprising insights, then emails them to you (or tweets at you if it's super interesting).

With the release of its new Polls feature... you can now create super-simple polls directly on Twitter with just the click or a button or a tap on your phone... the ins and outs of Twitter polls, how to set them up, and nine engaging ways you can use polls today. - The Complete Guide to New Twitter Polls: What They Are, How They Work and 9 …

No fremium model - minimum price $19/m - but it looks worth it: "Meshfire turns Twitter into a dashboard of tasks... The tasks can be to reply to different tweets, or to block someone or follow someone. Every twitter account is a mission inside Meshfire, and every mission has a goal. You define the mission ... a virtual assistant inside Meshfire…

Have you found the best hashtags to reach your audience? If you have, you should consider starting to gather in-depth intelligence about them. To get the latest trending hashtags related to #hashtags, updated daily and based on a full sampling of tweets, check out our professional hashtags analytics solution CyBranding Hashtag Intelligence. - See …

"ScribbleLive is an important tool for covering events and breaking news as well as for live chats. Journalists should get adept at using Scribble (or other liveblogging tools such as CoverItLive, Liveblogpro or Superdesk). But be sure to use it in tandem with Twitter. You don’t have to choose between them." - Using ScribbleLive, you can livetwee…