Here’s another that I am involved in, it is called JamiQ.
In a nutshell, JamiQ is a multilingual social media monitoring and measurement solution that provides the largest coverage of the social media in Asia. JamiQ uses advanced data mining methods and natural language processing technology to produce real-time buzz trending, sentiment detection, influence scoring, and market segmentation, giving you the critical insights you need for immediate and strategic decision-making.
I am aware and use few of those like radian, co.mments, compete and few more. some of those, i haven’t tried before so would love to have a look at them.
Some Twitter tools
Tweetdeck- Awesome tool automatic URL shortner and post comments on facebook wall and twitter at the same time. Also gives gr8 stats.
Rss2twitter: Automate your twitter a/c using this.
Tweetstats: tool to get twitter stats
Who2follow: Find people in your area of interest.
A very informative thread…would just like to add onto the list with one of the largest independent Social Media Analytics Services company, that I’m with Brandtology.
A key differentiation here is that the social media monitoring process is offered more as a service than as a tool, through a process of bringing our proprietary technology and trained professionals together to offer information that his relevant, with highly accurate sentiment analysis, which is highly reliable to make informed business decisions on.
Great list! I’d like to add Biz360 to the list. (Disclaimer: I work for the company). We provide a very easy to use web-based interface that allows to create sophisticated queries with a couple of clicks, measures social media coverage and impact of mentions across blogs, microblogs, discussion boards, etc. We also measure sentiment on both: the article and the topic level. if you have any questions, please ping me on Twitter (@themaria, @biz360)