I don't know of any but this is ,IMO , a very good idea. (Hmm. Your ideas are intriguing to me Amichail,and it turns out,that by reading HN , I have subscribed

I don't know of any but this is ,IMO , a very good idea. (Hmm. Your ideas are intriguing to me Amichail,and it turns out,that by reading HN , I have subscribed to your newsletter. :) )