Tweetdeck - Comes in a desktop, online, and app version. I use the desktop version mostly to monitor keywords and brand interaction on Twitter across about sixty columns. You can also use it to tweet and schedule tweets, but it's not as robust as Sendible or Social Oomph in that area.
Social Media Analytics Plugin for WordPress To Tracks Tweets, Likes, Pins, +1s Inside WordPress Dashboard Here's Why Social Metrics Pro is a Must Have Plugin for Your WordPress Site. Social Metrics Pro provides a powerful dashboard to centrally monitor social activity across leading social media networks like Twitter, Facebook, Google+, Pinterest, StumbleUpon, Digg and LinkedIn. #socialmediaanalytics #socialmediamarketing #wordpresssite #wordpressplugin
Monitor your reputation, your news mentions, your PR campaigns, your employees, or your competition. Trackur's social media monitoring tools are easy to use, yet offer a surprising number of features. http://websmagazine.net/
Sendible is a platform for engaging with customers, measuring results and monitoring your brand across multiple social media channels at once. Facebook (including pages and groups), Twitter, LinkedIn (including Groups), Tumbler, WordPress, Posterious, Foursquare, Flicker, SlideShare, Scribd, and so many more... all scheduled years in advance to the second.