blog software

What is the best desktop blogging software these days to handle multiple blogs on wordpress.com and blogger.com etc ? I want to post my own manually spunned quality articles to a lot of blogs (not self hosted blogs, but on blogger.com, wordpress.com etc).

I'm new here, but I hope that doesn't stop some of the very helpful people here from helping me out. I've been a long time reader of the forum, but just joined recently...anyway, here is my question. I'm looking for a software that does the following: I input a list of sites that allow users...