Have you checked on your google profile lately? Somehow mine got set to private so noone could just click on my name in a comment I left and come over to my blog. I don't know how long this had been like this but I am so glad for the blogger who brought it to my attention. I know I had it set to public when I set up my blog. Somehow Google changed my preferences on me. :(
Just a shout out that you all might need to go check on yours... Wouldn't hurt.