I'm very suspicious by nature, so when I started getting those 'Forbidden' ... Access Denied 'things' instead of my favourite blogs, I naturally assumed that someone was out to 'get' me.
It's funny, but these things seem to come in waves, or you happen to change one thing and another thing 'just happens' to be starting at exactly the same time, much like Brian's Big Brain Synchronicity stuff.
If anyone is having a problem with this and can't access their own blog, I've found that searching for blogspot then signing in seems to get you to your own blog.
Has anyone figured this out yet? Perhaps you could comment with 'the' solution?