This might be a silly question, so please accept my apologies in advance...is it possible to create a piece of logic that creates the sidebar on the fly by using the tags assigned to a post.
This might be the wrong way to go about it, but here's what I'm wondering: is it possible to create a piece of code that looks at the tags (one or more) on a particular post, stores that information in a variable and then looks for any other posts with identical tag(s) and displays the title/subtitle/first few lines of a couple of posts in the sidebar?
To take a practical example (close to my own heart...) suppose you had a site for a magazine and you had lots of posts with the tag 'environment'. Is it possible to use that info to display 2 or 3 other articles tagged with 'environment'?
I've looked at a number of different ways to modify the sidebar (by using includes, and conditional tags, but — unless I'm reading the tutorials/advice incorrectly (which is highly possible) — they don't seem to allow for this degree of dynamism.