I'd like an opinion from those on the hiring side. I'm considering writing a description of myself and publishing it on my personal website. Things like what I do, why I do it, how I approach things, what tasks I prefer, my attitude to the process, organization, quality etc. Nothing arrogant, just a detailed introduction of myself, how I've come to be what I am. Not in place of a CV, but an optional read which will always be there for someone to study, if that someone develops an interest in hiring me. Basically I think it will answer most of the questions (and beyond) that people may try to bring up in a personal interview. I thus will gain some points in the eyes of those looking for exactly my type and also prevent the wrong people (as in with wrong roles for me) from offering me a position I will not like.
UPDATE: I think I may have missed an important moment. Basically I'm in a passive job search. I don't currently send out resumes or apply to positions. I thought of putting my introduction there for those who develop a specific concrete interest in me through knowing what I do. It's not a question of putting something in a cover letter or omitting it. Besides, the introduction is going to be lengthy, far longer that could be deemed reasonable for typical application documents. So this is going to be an entirely optional read which I expect to be looked into only by those who already sort of interested in me.