What is Google accrediation about? Is it difficult to get? Is it expensive to get? What advantages does it give you? How much do people pay for consultancy with Google accredited professionals? Any answers. comments or insights would be appreciated.
Are you talking about Google Advertising Professional (Adwords) accreditation? https://adwords.google.com/support/select/professionals/bin/answer.py?answer=12241&hl=en_US It doesn't look like it costs anything above the minimum size of your Adwords account.
Well, it's validation that you have the experience to manage that size account. If you meet the qualifications, it certainly seems worth taking the exam. You'll have to ask around to find out whether people are willing to pay more to have someone accredited manage their Adwords account.
Search engine marketing becomes more popular now a days, and it becomes one of the cutting edge jobs So if you are interested in working in the SEM field, I think it's a must have for your advantage.