Hi everyone, for those of you trying to map tweets in your work, I just saw that GNIP is now offering geographic enrichment of their Twitter stream that geocodes both the Location information in user profiles AND the tweet text itself (it separates the two) and makes this available as lat/long data for mapping/filtering/etc alongside the traditional sensor-based and software-set Exact Location and Place geographic fields. http://blog.gnip.com/twitter-geo-data-enrichment/ While GNIP is using their own engine for this, you can see an overview of what the profile and tweet text geography of Twitter looks like in my paper from earlier this year: http://firstmonday.org/ojs/index.php/fm/article/view/4366/3654 Thought I would share this with the list since using GNIP's stream you can now essentially leave the geographic coding to them and just get an additional set of metadata for each tweet capturing what geographic information it contains, making it trivial to map tweets both by where they are coming from and where they are talking about... Kalev Leetaru Yahoo! Fellow in Residence Institute for the Study of Diplomacy Edmund A. Walsh School of Foreign Service Georgetown University