The administration has started a blog about President Obama’s “United We Serve” campaign to get Americans to do volunteer work during the summer.

The Stories of Service Blog debuted this week with several items about volunteer projects at nonprofit groups.

The lead post highlights efforts by Major League Baseball to support the campaign through a benefit concert, a video, a community-service project with AmeriCorps members, and a public announcement during this week’s All-Star Game.

The blog is featured on Serve.gov, a Web site operated by the Corporation for National and Community Service.