Did you know that by adding a .mailtracking.com at the end of a recipient's email address, you can track if the email has been read, how many times, for how long and even if it has been forwarded and to whom ! Eg : When sending an email to james@abc.com, just change it to james@abc.com.mailtracking.com and that is all ! All tracking information is sent to your email address automatically as and when your email gets read or forwarded. These guys are just so cool ! You may also visit them at email tracking website.
Jigsaw Puzzle Player (Mac OS X)
Description From the Publisher:
Play jigsaw puzzles on your computer, it's just like the real thing but without the hassle.
JPP lets you work on multiple puzzles and switch between them, the program automatically remembers the state of each puzzle, so that you can continue with it later. Play small puzzles that fit within your screen or use the smart zooming, navigating and splitscreen features to play large puzzles with several hundred pieces. Create computer jigsaw puzzles from your own digital images.
Did you know that by adding a .mailtracking.com at the end of a recipient's email address, you can track if the email has been read, how many times, for how long and even if it has been forwarded and to whom ! Eg : When sending an email to 
