Footer importance depend on the length of the page of your blog!
Good point, if your page is going to have big scroller at right side of the browser window, the there is no point of putting real useful information at footer, because many will avoid scrolling till end to see the footer.
But yes if you page do not have any scroller at all then it might be very useful to use the footer area in good sense.
That area always helps in such cases.
I agree with what you are sating here.