Twitter has quadrupled its active user base since 2010, new research from the Pew Research Center shows. Twitter has seen its daily usage increase substantially in the last two years. Twitter adoption has increased to 15% of all online adults as of February 2012. With 8% of all online adults being daily Twitter users. This daily Twitter usage has doubled, from 4% to 8%, in last two years. The previous survey was conducted in November 2010.
This Twitter survey was conducted in the US, therefore, actual results will vary from country to country. Your regional trends may differ.