Originally an adjunct to the Cairn Terrier Club of America site I established the forum as a means to allow the CTCA to interact in a friendly, informal way with Cairn fanciers.
The club declined to embrace the opportunity; however, the community thrived despite benign neglect by the parent organization. When I retired as CTCA web administrator the club graciously permitted me to transition the forum to a privately owned site.
CairnTalk lives on today as an unaffiliated independent Cairn community forum.
In its earliest incarnations, CairnTalk was first run on Discus, and then phpBB. I fairly quickly rebuilt it as an Invision Community instance. It was called Invision Power Board at the time. The site has been running on Invision since 2004.