The New York Times has a piece on the resurgence of mikvah use in America:
The effort to revive mikvahs has been largely motivated by a mandate from Rebbe Menachem M. Schneerson, of the Lubavitch movement, who died in 1994. He assigned rabbinical emissaries to set up Jewish communities worldwide and directed them to build mikvahs and promote their use. Now there are mikvahs in places like Anchorage, Bangkok and Bogota, Colombia, Rabbi Shmotkin said.
Funny, isn't it, that, according to the NY Times, non-Chabad Orthodox Jews play no role in mikvah resurgence. I guess the kollel movement and Modern Orthodoxy need to hire a PR firm.