I just suggested a book to a couple dozen 'friends' here, but started wondering.......if any of them have dropped down to ala carte membership, they won't be able to see my PM, right?  But not a single one generated a 'not deliverable' message.....maybe PBS just lets us hang out there and I'll never know if they got the msg or not.  I do know 2 of my friends here have been quite inactive for over a year.

Jeanne, that's a good question! I looked in the Help Center but could not find a definitive answer, but what I found leads me to believe that if a member is ala carte, they would not receive the PM. I use the feature a lot, but checking to see who I've been using the feature with, I see they are all standard members. I guess you would have to look and see if they have the gold or silver icon by their name to determine if they are at a level to receive a Suggest a Book PM. It doesn't show up on the Friends tab so I'd guess you would have to go to members' profile to find out. 

From what I've read, it sounded like ALC members could receive PMs but no respond to them.

I wish that would change so we can all pm everyone else and they can pm back.

On another note, I never noticed the suggest a book feature, I need to check that out!

In response, I got a bunch of nice PMs from friends here who I never hear from so it was a good way to reach out to them.

Jeanne, I had to send a PM to team members (image & data editing), some of whom were/are a la carte.  They all rec'd the PMs, but a la carte members could not respond directly to me.