[Air-L] suggestions for Twitter aggregating & analytic tools

[Erica Ciszek]

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 at uoregon.edu