certifications
Name any prominent software technology, and you'll find a certification program for that technology. For a fee, of course.
It's a dizzying, intimidating array of acronyms: MCSD, SCJD. RHCE, ACSA. And the company offering the certification is quite often the very same one selling the product.
software development concepts
Scott Hanselman thinks signing your name with a bunch of certifications
[http://www.hanselman.com/blog/ScottHanselman11SuccessfulLargeProjects3OpenSourceApplications1CollossalFailure.aspx]
is gauche [http://wordnet.princeton.edu/perl/webwn?s=gauche]:
> If it's silly to suggest putting my SATs on my resume, why is …
Scott Hanselman, MCSD, MCT, MCP, MC*