I have some Free materials and FWIW at least in my case when I am contacted out of the blue it does not seem weird (I get maybe one a month). People email and

I have some Free materials and FWIW at least in my case when I am contacted out of the blue it does not seem weird (I get maybe one a month). People email and send polite, brief, and respectful notes. It would take quite the grouch to not appreciate getting such a note, and I always reply.