My screen reader knowledge is a bit dusty, so this might have changed: As far as I know, screen readers don't read the title tag by themselves, though users ca

My screen reader knowledge is a bit dusty, so this might have changed: As far as I know, screen readers don't read the title tag by themselves, though users can request it. So your approach works. And I think it is also has nicer semantics. Personally, I prefer to use a text link with the company name, then move the text out with css and add the logo as a background image. This also works great in text browsers of course, the company/site name just becomes the h1 of the page.