"After several years of decline, the demand for certification
and training in GNU/Linux and other free software areas is stronger
than ever. That's the general opinion of experts in the field, as
they discuss where certification has been, current course
offerings, customer services, and trends for the future.
"GNU/Linux certification emerged in the late 1990s as
recognition of the operating system first became widespread.
However, Jim Lacey, CEO of the Linux Professional Institute (LPI),
notes that certification was 'overmarketed and oversold,' and its
demand declined in the first years of the millennium..."