I added more photos of Eric Harris and Dylan Klebold to the photos page of my Columbine Guide.
I also made the scans much larger on the Columbine killers' autopsies page. And I added internal page links so that you can jump right to relevant sections like "wound summary," toxicology, and the gastrointestinal section that indicates Dylan had apparently eaten potato skins that morning.
And I added a commentary page to Dylan Klebold's journal.
Update: I've continued adding more since then. And more to come. I've also updated my Columbine page at my main site.