I recently completed a top-to-bottom refresh of my audio slideshow of photos from Iran. Little did I know when I put it online in late 2007 that it would rack up more than 100,000 page views. I received a lot of feedback from Iranians. It remains my most popular published work of any kind.
This year I decided to redo every single photo. It was heaps of work but I think it's worth it. My skills in post-processing photos have improved substantially in the six years since. The software and hardware tools I use have also improved.