Concept: “A city generator”
Content: Two dozen tables to create a living, breathing settlement
Writing: Tons of little details to add real personality to locations
Art/design: Good use of Mörk-Borgy colors while being easy on the eyes; physical version glows under a black light (awesome)
Usability: Keep a notepad handy; there are too many characteristics to remember unaided

Concept: “What happens when the lore of our world collides with the Dying World of MÖRK BORG?”
Content: The second volume of collected FÖLK-LORE Jam entries
Writing: Varies by author, see individual entries under the FÖLK-LORE Jam tag
Art/design: Varies by entry; single-page entries are well balanced in spreads
Usability: Varies by entry, but it’s all Mörk Borg—how tough could it be?

Concept: “You wander the world, gathering and consuming the sacred fungi.”
Content: A character whose foraged mushrooms grant special effects (but not always the ones you want)   
Writing: Mechanics-focused and efficiently so
Art/design: A variety of ’shrooms and an impressive ’stache
Usability: Probably safe for consumption

Concept: “An experimental sonnet, adventure, and bestiary”
Content: A relatively brief but compelling, supernatural dungeon
Writing: Poetic text reinforces the dark, haunted theme and provides DM with inspiration as well as interpretive flexibility
Art/design: Some extremely rich colors with A LOT of creepy baby doll faces, even by Mörk Borg standards
Usability: Paginated by room for easy operation

Concept: “Once you were a peaceful toymaker. […] Now your toys are imbued with dark magic, and wreak havoc on the dying land.”
Content: A crafter/artificer class that uses Powers to create magical automata
Writing: Intriguing flavor and concise descriptions of mechanics
Art/design: This class may or may not be a giant owl in a funny hat
Usability: The document is aces; remembering where you left your toys may make in-play management a bit more involved than other classes