Libby, when I send an email that contains information, reports something, or a picture, I, like you, expect a response, even if it is a quick "Ha Ha" or "how cute" or something. I don't respond to those 100% of the time and I ought to do a better job. What I don't feel compelled to respond to is the multiple forwards that people send to huge groups of email recipients that are jokes or political messages. I may look, I may not. I'm more often than not going to delete them without opening them if it isn't a close friend or family member sending them.

But I'm with you. It is common courtesy to at least acknowledge something, especially from your sister! My sister does the same thing and I have no way of knowing whether she got it or not.

Logan