Letters of Note is one of my favorite sites on the web. I check in on it constantly. Interestingly, the blog recently started accepting advertising and the author did a post about that...

I've spent a career in advertising and marketing. One of the many things I love about this business is that it provides support for so many cool things in society. Folks often forget that. But Letters of Note re-inforced this once again for me.

From the site:

The comments are nice, too.