Storyguiding Advice

Ars Magica Advice

Ars-Magica-specific storyguiding advice can be found in:

Running Ars Magica – advice for new story guides, part one by Chris Jensen Romer
Aestes Tenens extensive storyguiding advice for new storyguides, by Tejun Gallud [pseudoname]. While the site is in Spanish, auto-tranlate makes it perfectly accessible, and its bredth is second to none.

In addition, on this wiki you may want to see the pages

Finally, general advice for tabletop RPGs is applicable to Ars Magica just like it is to any other TTRPG. Notable resources include

Robin’s Laws of Good Game Mastering, by Robin D. Laws. This classic GM advice book focuses on player types, motivation, and tailoring play to your group.
Hamlet's Hit Points, by Robin D. Laws. Helps with pacing, tension, and emotional beats. But see also the 7-point plot structure (a long structure is more suitable to RPG sessions, which tend to be long).
Return of the Lazy Dungeon Master, by Michael E. Shea (Sly Flourish). Advice on reducing prep time and embracing open-ended play, including advice on secrets and clues. See also the free Lazy GM's Resource Document.
The Lazy Dungeon Master (free), by Michael E. Shea (Sly Flourish). Older advice on reducing prep time. While some is D&D-specific, most of it is general and applicable to Ars Magica.
Play Unsafe, by Graham Walmley. Brings in improvisation techniques.

Some free resources also include

The Alexandarian. A blog, famous for node-based scenario design, three clue rule, don’t prep plots.
The Angry DM. In-your-face style, but has advice on GMing, including pacing and running a table.
Gnome Stew. General GMing advice.
Sly Flourish – The Lazy Dungeon Master's you tube channel, including his podcasts. See also his website.
See also GNS Theory, including GNS and Other Matters of Role-Playing Theory, Chapter 2 by Ron Edwards.
The Dungeonworld Gamemastering advice is highly respected, including the use of an agenda, principles, moves, and fronts.