Many high school technology programs offer various industry certification programs.
Most large software companies offer some kind of certification program, particularly those that focus on large-scale corporate installations (Microsoft, Cisco, A+, Sas, Sun, etc.). If you are aware of particularly applicable links, please add them here.
In my (Luther's) conversations with employers and academics, certification programs are seen as an illusionary carrot. While there are good jobs that require certifications, most people I know perceive jobs that give positive weight to certifications as “grunt work”. I spoke with at least two employers who said that certifications are worse than no certification on résumés because they are correlated with party-line non-creative solutions. That said, certification programs are a good avenue to a reasonably-good job right out of high school, and can motivate students to complete a program they might otherwise quit.