As I pointed out a few weeks ago, Blogger has got to get their act together. The performance has improved over the past week or so but prior to that it had really been miserable.
Also here’s a trick that works for me sometimes. If you can’t publish to blogger with Firefox try opening up IE and publishing with IE instead. I find that when Blogger is having their frequent tempermental moments that I get more success publishing with IE than Firefox.
Seriously Google. Losing bloggers to competitors is one way to slow down your growth but probably not the best strategy.