Even though left would signify going backwards I picture looking at a blog like flipping through a magazine. So where do your eyes go when you flip the page, the bottom right.
Although this isn't a direct analogy to the current layout of hubski I do think that it is uncomfortable to look at the front page. If the idea is to keep it away from being a stream interface then could we resize the posts based on relevance sort of the way that TED sizes their video links.
What are your thoughts?