Google's blog search engine lacks a homepage that displays the most important posts from the blogosphere, but there's a way to find interesting posts without entering a query. For some strange reason, if you search for [label:keyword] or [view:keyword] (keyword can be anything you like), Google ignores your query and displays a list of blog posts. We can assume it's a list of blog posts relevant for any query.
Related:
How Google Blog Search ranks results