An anonymous reader writes: Hello all, I use a very unique user name (all numbers) when posting and creating accounts on the web. Originally it was for the purpose that the user name would never be taken, so I would always remember it. But today I complete a search for my user name and found 100's of pages dating back nearly 10 years of random posts I've made, and accounts I was no longer aware of on the web. Due to the fact my username is so unique, practicly all search results were relevant. Then it hit me that I could use the unique user name within other things such as web pages, scripts and images I've created so I could track if they were ever used for on other websites without permission. Just out of curiousity, I was wondering if the Slashdot community may have ever come across this before, or have any other thoughts or suggestions for tracking the life of your digital work.