There is a new browser on the block called Flock, that looks like it has the blogging community in mind, with del.icio.us and Flickr integration that is trying to go head to head with Firefox. There is a beta download for Windows, Mac and Linux. It's also trying hard to be the browser that implements web 2.0 standard/features first.
So if your looking for a browser to integrate posting to your blog, tracking blogs and using blog tools, as well as the usual firefox tools, this might be your cup of tea. From my early goes with it, it's looks great, but is very very slow, and buggy, but they have released it early so we can help them iron out the bugs.
I used it for this post, and the drag and drop and integration with flikr (again drag and drop) is amazing.