There is this new browser thats poping up, flock is an open-source browser built upon the Mozilla codebase that aims to provide direct, extension-less connections with a variety of hosted web services and applications. still in beta, im going a head and downloading.
flock is fancy but the current beta mixes up del.icio.us descriptions and tags its also integrated with wordpress and flickr
one feature i like is that you can post to a blog right from the browser. rather than getting to the login page of the particular blog, not sure if all blogs support, certainly blogspot and wordpress.