comScore, Inc. (NASDAQ: SCOR) has just released a report on Twitter’s explosive growth worldwide. The comScore study found that in June 2010, about 93 million Internet users visited Twitter.com. This is an overall increase of 109 percent over last year. Indonesia reported the highest number of users, with 20.8 percent of Internet users in Indonesia visiting Twitter.com in June of 2010, followed by Brazil and Venezuela.