"IT certifications evoke expectations of both software and
systems administration skillsets, but jokes abound about how little
knowledge so-and-so with such-and-such a certificate has.
"One thing is clear: Although Microsoft and Cisco certifications
continue to be the biggest, the importance of Linux certifications
is on the rise. Linux occupies prominent positions in CertCities
'10 Hottest Certifications of 2006' list, for example..."