What happened to bowling alone?

The Corporation for National and Community Service -- a government entity that runs AmeriCorps and Senior Corps -- issues a report that would, at first glance, surprise those who have read Bowling Alone. From the press release: Volunteering has reached a 30-year high in the United States, as more people pitch in to help their communities, according to a study released today by the Corporation for National and Community Service.... The report, Volunteer Growth in America: A Review of Trends Since 1974, finds that adult volunteering rose sharply between 1989 and 2005, increasing more than 32 percent over the last 16 years.... The brief analyzes volunteering rates in 1974, 1989 and 2002-2005, using information collected by the U.S. Census Bureau and the Bureau of Labor Statistics. It finds that the growth in volunteering is driven primarily by three age groups: teenagers 16 to 19, Baby Boomers and others age 45 to 65, and older adults 65 and over.... Among the findings: Older teenagers (ages 16-19) have more than doubled their time spent volunteering since 1989. Far from being a ?Me Generation,? Baby Boomers are volunteering at sharply higher rates than did the previous generation at mid-life. The volunteer rate for Americans ages 65 years and over has increased 64 percent since 1974. The proportion of Americans volunteering with an educational or youth service organization has seen a 63 percent increase just since just 1989.... Educational and youth service organizations (such as schools, 4-H, and Boy Scouts and Girl Scouts) are benefiting from the growth because they have received the largest increase in volunteers between 1989 and 2006. Nearly 24.6 percent of all adult volunteers serve through such organizations, a 63 percent increase since 1989. The biggest percentage of volunteers serves through religious organizations, although the proportion of Americans contributing time to those groups has decreased slightly, from 37.4 percent to 35.5 percent, since 1989. Noting that volunteering actually declined between 1974 and 1989 before rebounding, Grimm cited several reasons for heightened civic engagement today: Teenagers are volunteering in greater numbers, in part, because of an increase in service-learning programs in schools and colleges that combine classroom study with community activity. Another reason may be a response to traumatic national events such as the 9/11 terrorist attacks and recent natural disasters. Mid-life adults are more likely to have children in the home because Americans are delaying marriage and childbearing. The result is increased exposure to volunteering opportunities connected to their children?s school and extracurricular activities. Older Americans are living longer, are better educated, and more financially secure ? creating an increased desire for them to remain active and seek ways to give back to communities. After another glance, this result can be partially and uneasily reconciled with Putnam's thesis of declining social capital. First, Putnam focused on a wide range of behaviors beyond volunteerism, which this report doesn't cover. Second, this report still shows a volunteering gap among Gen X-ers like myself, which prompted Putnam's book in the first place. Third, describing the growth of teenage participation in these kind of activities as "volunteerism" stretches the meaning of the word a bit, since "service-learning programs" are often mandated at the high school level (that said, the growth of volunteerism at the high school level might also be a function of market pressures -- you want to get into a good college,you need to demonstrate volunteerism). One question I'm curious about: these service programs have been in place for quite some time now. Does anyone know if hard data exists showing that participation in them triggers a life-long pattern of volunteerism?