Re: Benefit of having a personal blog related to your profession?
blogs as part of a total online presence can be of help in two ways
from a passive sense, meaning they don’t drive some recruiter to you but you are identified as a candidate elsewhere, maybe you applied directly and as they do some background search one you they find your blog, or you have your blog listed in your resume. Now this can help because it shows you are excited about your career, engaged, thought leader etc etc.
from an active angle, if you have a blog, are engaged in the right groups in linked in, connected with right people on linkedin, engaging on twitter and are building a more prominent personal brand, that may actually serve as a trigger for recruiters to contact you.
additionally, depending on company, internal moves or moves up could be helped if you have greater visibility in your field and industry.