Amongst the many recommendations for keeping your memory sharp is to do crossword puzzles.
The  New York Times crossword keeps me pretty sharp.

Except when it makes me feel like a dinosaur.

 A recent puzzle asked for the  online shorthand for "if you ask me."  It wasn't iyam which I imagine was already registered to Popeye. The correct answer was imho.  For those of you who have a burning desire to know, it stands for In My Humble Opinion.

The url http://www.netlingo.com is now my new best friend. And when I figure out if I want to Twitter, or more importantly why Twitter, or how to Twitter, I can use this site to help me maintain the no more than 140 character limit.

So now, you can be right there with the rest of the on line world.

iyswim.