First off, I’ve added tags to FeedDemon’s subscription tree, as shown in this screenshot (click to enlarge):
Selecting a tag in the tree displays a newspaper containing all posts with that tag.
I’ve also added “suggested tags” to the tag editor, which attempts to recommend tags for the selected post:
I’ll be fine-tuning the tagging features even more before this version is released, of course, but I plan to keep it simple. I know there’s a lot of tagging-related stuff I could add, but complexity is something I hope to avoid :)