Table 1. Top 5 sources of geo-tagged tweets in our data set.
There are 2,051,250 tweets in total.
| Rank | Source | Proportion % |
|---|---|---|
| 1 | 61.2 | |
| 2 | Sandaysoft Cumulus | 5.8 |
| 3 | Foursquare | 4.0 |
| 4 | dlvrit.com | 3.6 |
| 5 | dlvr.it | 3.4 |
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