The effort, which officials described as a way to counter Taliban propaganda, represents a sea change in how the military can communicate its message to foreign and American audiences.
The military on Monday announced the death of U.S. service member the previous day from non-combat-related injuries in southern Afghanistan by posting the news on Twitter hours before announcing it in a more formal press statement.
The military is also encouraging troops to post stories and photos on Web sites in an effort to portray daily life in Afghanistan, including stories about development projects that may not make the news.