Jeffa - I do not agree with your possition regarding Microsoft! I much do not like Microsoft, but to be employed you should do what employer need to be done. If anything need to be done in Windows - you need to be able to do it - if you are PERL developer - with PERL! Certificate does not needed to suck monney from developers! It is needed to provide to potencial employer proof of your PERL knowlage. That only a way to present it when you could not show it in your experience. Another way to be usefull: certification could be a way to be sure that you know it well enough! It shoud cost something because it need to be prepared, get some way to process an exam, have somebody time to review the test results and have it printed in any way.