Hmm, good question. I would say that it's still possible, theoretically. Especially if you focus on building a community through your blog, getting more traffic to your site, etc. The more eyes on your site, after all, the more chance that one of those pairs of eyes (icky metaphor, oops!) will belong to someone who could "discover" you! I wouldn't depend on it, but I also wouldn't say that it will never, ever happen.