I could see how having a personal website that is basically just your resume could be helpful. If you're a web dev in particular, this kind of thing is essentia

I could see how having a personal website that is basically just your resume could be helpful. If you're a web dev in particular, this kind of thing is essential. However, I don't think having a personal blog is a good idea for everyone. If your posts are all extremely boring and about mundane tasks, then you end up looking very self-involved. Being too funny can come off wrong as well, making you seem crass or like someone who can't be counted on to take things seriously. God forbid you talk about politics or complain about the person who cut you off in traffic. I'm not saying that having a personal blog is bad, by all means make one and complain about politics, but if you make a website/blog for the sole purpose of helping you get a job, I'd think twice about the kind of content you'd going to put out and how that would reflect to future employers. Having no presence online really doesn't strike me as a bad thing at all.