Erica, I have listed a few options (not exhaustive) below depending on how customized you would want your algorithm to be. The options further down in the list will require higher level of effort but provide greater control and specificity on the output. Clarabridge Rapidminer R (tm.plugin.sentiment) Natural Language Toolkit (NLTK) with Python larabridge is the only one that is a fully commercial product. The rest of the options are open source solutions that need to go hand-in-hand with some licensed packages. For example, NLTK is open source and free. However, you will also need access to a lexical resource like SentiWordNet (http://sentiwordnet.isti.cnr.it/) - this is free for non-profit purpose, may incur cost if we want to use it in a client setting. There are free versions of R and RapidMiner that can be downloaded and used, though using this might need additional coding. Regards, Tony Tony Moore Strategy, Brand & Innovation | Deloitte Analytics 2 Braxton Way, Glen Mills, PA 19342, USA Tel/Direct: +1 610 479 3124 | Fax: +1 610 479 4124 | Mobile: +1 215 218 8891 tomoore@deloitte.com | www.deloitte.com This message (including any attachments) contains confidential information intended for a specific individual and purpose, and is protected by law. If you are not the intended recipient, you should delete this message and any disclosure, copying, or distribution of this message, or the taking of any action based on it, by you is strictly prohibited. v.E.1 -----Original Message----- From: air-l-bounces@listserv.aoir.org [mailto:air-l-bounces@listserv.aoir.org] On Behalf Of Erica Ciszek Sent: Friday, September 28, 2012 10:13 AM To: air-l@listserv.aoir.org Subject: [Air-L] suggestions for Twitter aggregating & analytic tools Dear Colleagues, I was wondering if anyone can suggest particular tools for aggregating and analyzing Twitter content. What are the best tools for gathering tweets (by hashtags) and for analyzing activity (by these hastags)? Appreciate any suggestions. Best, Erica Ciszek Doctoral Student Graduate Teaching Fellow School of Journalism and Communication University of Oregon eciszek@uoregon.edu _______________________________________________ The Air-L@listserv.aoir.org mailing list is provided by the Association of Internet Researchers http://aoir.org Subscribe, change options or unsubscribe at: http://listserv.aoir.org/listinfo.cgi/air-l-aoir.org Join the Association of Internet Researchers: http://www.aoir.org/