Interesting to see the conclusion; they mention that one of the few social institutions doing well are megachurches, not only seeing a growth in members, but a growth in committed (paying significant amounts) members. They attribute this to their having established thousands of small sub-groups, mountain bikers for god groups, wednesday squash games for god, etc, allowing people to spend focused time with relatively few people
Last updated in (2010), based on the .pdf metadata.
The original seems to be (1995) -
https://web.archive.org/web/20100201190211/http://xroads.vir...
In any case, America has not improved since then.