Owlead - Grow your Twitter with valuable followers, effortless
UsersInsights - The Users Insights WordPress user plugin helps you manage your user data in one intuitive, beautiful and searchable place.
Tweetbook.in - Tweetbook.in lets you create and save a diary like PDF ebook of tweets.
Talkwalker - Talkwalker Consumer Intelligence Platform: built for speed of insight, ease of use, and data democratization
Narrow - Narrow helps you build a targeted audience and increase your influence on twitter.
Affinio - Affinio is an advanced marketing intelligence platform that leverages the interest graph to understand today’s consumers.