Blogging application

I was looking for a good blogging application that can be used while writing offline. I am surprised to find that there is no free application that provides a simple editor like notepad for blogging. Even Mac Pages does not seem to provide a hookup to common blogging websites. Is anyone aware of any plugin to Mac pages or TextEdit that can be used to publish?

I am hoping that Google Gears provide this feature of working offline on blogger.