We just started our 90-year-old mom with the Presto service in December for her birthday.  We all love it.  My request is for more puzzles and mental challenge options to be made available.  Until then, could we have a place here to exchange free or low-charge subscription service ideas for good puzzle and joke sites? 

I will make the first contribution as Mom loves to solve cryptograms and I love that it helps to keep her mind sharp.  I found a Daily Cryptogram site that is free, will e-mail a puzzle either daily or weekly and only ask for a donation if possible.  The address is:  http://www.dailycryptogram.com

 I just set Mom up with it today and intend to give a donation after a week if it continues to deliver the right stuff.

 Hope this can be of use to someone else out there.