TAIRA is the Tsukuba Area International Residents Association.
From the TAIRA mailing list website:
"The TAIRA mailing list aims to provide a forum in which people living in the Tsukuba area can exchange information."
All the messages are put in a searchable archive. Information on living in Tsukuba, questions about life in Japan, items for sale, and job listings are among the many topics that are addressed on the mailing list.