<i>nice, because you are obviously not in it for the advertising revenue</i><p>Just because you link to your blog doesn't mean you are getting ad revenue (ex, my blog has no ads).<p>I personally feel that Ask HN posts are weaker because they are transient.  To Ask HN is to have a discussion that lasts maybe a day with a small number of (relatively) like-minded people.  A blog post will be more visible for "longer" (I don't recall any Ask HN posts showing up on Google, so their lifespan is basically their front page time), and represents a stronger commitment to the point made.  Not all blogs have comments, but generally they do, and are open to a wider audience than HN.