1. I have a private board where I am bookmarking higgledy-piggledy the sundials that I might want to use. This is actually better than bookmarking in Diigo because I need the VISUAL cue provided by the image as I go back through what I have bookmarked and select the item I want to work on. I am keeping the board private because I am bookmarking CC-licensed images as well as images that are not CC-licensed; eventually I may decide to contact the copyright owners of those non-CC-licensed images to see if they will give me permission to use their images in a blog post. So far, though, I have plenty of CC-licensed material to work with.
2. I then created a public board for Latin sundials, and as I add new blog posts, I also pin them to the board. Here is what I have so far: Latin Sundials at Pinterest.
3. I also learned how to create widgets for individual pins! That is something new for me. You can see those in the sidebar of my Janux History of Science blog, and I've pinned one here below as an example. My plan for the blog is to have two pins in the sidebar from my two most recent blog posts. So, as I add a new post, I'll move the top pin down in the sidebar and add the new pin up top. It takes just a moment to do; you just go to a pin, click on Share, choose Your Website, and then grab the embed code. You only need the actual js script once on a page; after that, you can just grab the data line. Very impressive: I love widgets!