Making "Personal"
The next step was actually the tricky one. I had to generate a different unique URL for each recipient on our list. I wanted to make sure that the URLs were likely to be unique but still not too hard to type. So I decided that each URL would be at a new web site, hny2008.com, and would have a variable component that was 8 characters long. I decided not to include any Os or Ls or 1s or 0s so that there would be no confusion.
I wrote a random number generator and a tool that allowed me to enter the text that should appear on each image so that it would be associated with that random number.
I also created an Easter Egg which you might discover.
If you liked this, or even if you didn't, please let me know.