Commenting problems

I have been having problems commenting on other blogs, reading the comments on my own blog and I cannot respond at all to the comments on this blog! It is SO frustrating. From what I have seen on the web, I am not alone. So if you haven't heard from me in a while that is why! And to those who have commented on my blog, I finally figured out a way to read them, I just can't respond. Maybe it will be fixed soon!