They are relevant to identity because it is interesting how people use the net to form their identity and do interesting things to make a buck doing things that would be impossible without it.
There are a few interesting "Internet Tricks" that I have come across and I thought I would share. The earlier one is One Million Pixels - where a guy sold one web page's pixels for a dollar each in minium blocks of 10x10. He made his money.

This one a guy started off with One Red Paper Clip and is trading it up for a house he started less then a year ago and is now trading for a years free rent in Pheonix.