If you're using Firefox, as you should, you can now middle-click thumbnails in any of my new galleries to open them in new tabs instead of blowing them up. Same goes for Opera. If for some inexplicable reason you're still using Internet Explorer, this won't work, but you can right-click the thumbs and select "Open Link in New Window" now.

Try it out with these El Misti pictures.... Still to do: showing captions with the full pictures. I want a semi-transparent bar to slide into view at the bottom of the browser window and show the caption whenever a thumbnail is clicked, but I'll need to devote some time to making that.