Apologies to those of you who have tried to visit and been blocked over the past day or so... I just found out that my site was hacked and contained some code that was causing browsers to block my blog... even from me!
Thank you to my good blogosphere buddies, Mariuca and LadyJava, who got to the bottom of the problem. If your site is going blank when loading, check out LadyJava's post here and Mariuca's post here for some help finding the problem... check your blog's XML template for hacked code from a site called Paying Post. I should also be clear that I do not participate in "Paying Post" and did not, intentionally or inadvertently, add their code to my blog. I was HACKED!
My first repair was to go back to my old Blogger template from May 2008, but with the information about the paying post code that was hacked into my header, I was able to restore my most recent template and put my site back together again.