It turns out that blogger has flagged me as a spam blog, which is a blog that is auto-generated to post advertising messages. I have sent a request to blogger to take me off the spam list.
It seems to me that my blogging problems started with Blogger 2.0, but I may just be feeling burned about new versions because I upgraded to Skype 4.0 last week and it is crap compared to v3... I'm having all sorts of problems, and since I have an online phone number with Skype and use it as my home-phone-away-from-home, and since I'm away from home more often than not, it's a real pain to suddenly have it downgraded to alpha-level usability. Skype phone numbers are cheap and have unlimited long distance and free voicemail, but I guess I'm getting what I paid for.... which appears to be the case with my free account on blogger, as well.
Update: Reading the blogger help pages, I see that they say spam blogs "can be recognized by their irrelevant, repetitive, or nonsensical text..." Now that's just mean! ;-)