Just noticed this old Netcraft report that found that a hoster using FreeBSD was found to be the most reliable hosting company sites measured in Oct 2007. Three of the top ten were using FreeBSD.

Octopus currently uses FreeBSD for all its systems, a choice made mainly because of high levels of prior experience in installation and maintenance.

2008-07-09 Cookie-based login
2008-04-01 Software upgrades
2008-02-19 Services upheaval & testing
2008-01-05 Choose FreeBSD for reliability
2008-01-01 A new year at Octopus
2007-10-17 DNS server - slave zones
2007-10-16 Octopus NTP server
2007-10-16 Email & DNS config live
2007-10-09 Intense beta-testing
2007-09-16 VPS admin interface
2007-09-16 Converted to PostgreSQL
2007-09-15 Shared memory problems solved
2007-09-15 Problems with PostgreSQL
2007-09-12 Pricing plans put up
2007-09-11 Preparing to launch