Twitter, a popular micro-blogging site in the world reached the half billion accounts in June 2012. 140 millions users are in USA. Semiocast, a company providing data intelligence and research on social media based in Paris, France, on their study issued Top 20 countries in terms of Twitter accounts. The top 5 countries are USA , Brazil , Japan , UK , and Indonesia . In the top 20, there are several Spanish speaking countries which are Mexico (no 7), Spain (no 9), Colombia (12), Venezuela (no 13), and Argentina (no 17). Maybe it seems normal if we see often a Spanish word become a Trending Topic World Wide on Twitter. Semiocast also revealed Top 20 cities by number of posted tweets. Surprisingly, Jakarta is the most active Twitter city in the world! My home and natal city, Bandung , is also on 6 th rank! I never thought that the Twitter users in Bandung are as much as that. I remember when Twitter launched Trending Topics based on city, in Indonesia there are...