I apologize to anyone not able to access my websites. I assure you they are all still online and active... at least from my end.
I have had hints in the past that my web address has been associated, wrongly of course, with spam... and therefore certain third-party sites won't allow mine to be accessed. I have heard about using a proxy before, but never bothered to figure it all out as it has never been a problem for me.
I can only assume that the problem is the fact that I'm using a free web host and domain name.