It’s a weird feeling when you know that particular blog posts would get particular responses from particular people and you do not get them.
It’s a bit disappointing and a bit unsettling.
And after that if you find that the particular people have not been up in their own blog as well, it becomes increasing unsettling till it takes to a scare.
Unsettling is the perfect word for it.
Update: One of them is back on the blog; after a month's gap