I'm making a list of currently active projects in the Ars Magica community, and here's my list:
These forums
Sub Rosa (fanzine)
Games from Folktales (podcast)
Project Redcap (wiki)
Grand Tribunal (convention)
30 Days In November (writing project)
If you have a project for the Ars community, or know of one not on this list, please post about it!
The Net Wizard's Grimoire - is updated periodically ( ironboundtome.wordpress.com/ ), I'm not sure if either fit the idea of a "project" though.
I'm happy to add these, thank you!
Timothy Ferguson and other fans have created the sample covenant of Sabrina's Rest also available as a pdf, free online from this location.
The project (named "Vanilla Covenants Project") is near to be completed. We are just waiting for ironboundtome's last contribution (Asteria of Verditius' datas).
But the Dropbox link to the Vanilla Covenants file does not work.
No, it doesn't anymore. I gonna change it soon !
EDIT : It works now again. Thanks to you for the remark !
Doctorcomics, you appear to have left off Peripheral Code, the fanzine named in your own signature.
Let me check with CJ if he's planning any more episodes of the "Arcane Connection" podcast anytime soon - we keep meaning to get around to it, but it's already May and CJ will be busy with Grand Tribunal planning for August.
Was Vanilla Covenants ever going to do a volume 2?
Unfortunately, the others contributors to the project have never kept on developing their own vanilla covenants actually…
Covenants were:
• Second Covenant: the Covenant of Iusto Foedere by Xavi
• Third Covenant: the Covenant of Wiggon’s Kiln (dead link) by Arthur
• Fourth Covenant: the Covenant of the Shivering Mountain by ironboundtome
A sort of side-sequel...
I'm going to do a new column on the podcast which is about Cornish folklore, and you'll be able to use it and the Vanilla Covenant together.
Great ! I'm looking forward for it ! Maybe I could edit the pdf and make a mention (a link in fact) of it in the side of the text !
I totally forgot about Arcane Connection; that's a great catch, thank you.
I didn't forget about my own fanzine, I just didn't need anyone to remind me about it!
I very much appreciate the fixing of the Vanilla Covenants link. Thank you! I'll link to it.
Nice resource, but not exactly a community project, is it? Or have I missed something?
Magi of Tom is about as much a community project as the ironboundtome is - a personal blog for all the resources that demand writing up but aren't expecting outside contribution - examples of the "just do it" school of contributing to fandom.
We have had several threads about collaborative writing projects on this forum, such as "the things to write thread" - [url]https://forum.atlas-games.com/t/the-things-we-should-write-thread/9986/1] few have come to fruition (which is why Vanilla Covenants vol 1 is worthy of praise). I had hopes the Rome Tribunal project would create nice things.
I suppose the "A a day for November" threads (30 items of game writing for National Gaming Demonstration or NaGaDemon, the RPG equivalent of NaNoWriMo) could count - CJ's done saints and tribunal cases, we have done magic items, I did Solomonic naranj with a couple submitted by other people.
EDIT: eg
[url]https://forum.atlas-games.com/t/a-book-a-day-for-november/10429/1] A book a day for November.
[url]https://forum.atlas-games.com/t/thirty-solomonic-suggestions-for-november/8399/1] "30 solomonic suggestions" became 21 Naranj in the end, with Ramidel chipping in a couple.
Good point.
Should we also include the various "more magi of hermes" threads on the forum?
That's why I asked earlier if my blog was a viable resource. I read it as projects which are in the community, not projects which must have multiple participants from within the community. Trim the personal Ars blogs/vidblogs/projects out if they're off-topic. 
There are some reasonable questions infrequently asked in the Ars topic of RPG Stack Exchange, though they are very specific.
I also thought Vanilla Covenant was all but dead when the official book of sample covenants was announced.
November projects
https://forum.atlas-games.com/t/hooks-adventure-outline-a-day-for-november/9468/1 “Hook” – gremlin44 made it as far as 5
https://forum.atlas-games.com/t/30-redcap-magic-items-for-november/8386/1 redcap items – jarkman did a few
https://forum.atlas-games.com/t/thirty-days-in-hibernia/8384/1 Days in Hibernia – CJ wrote 3 letters
https://forum.atlas-games.com/t/thirty-ish-verditius-items-for-november/7373/1 Redcap items – I did quite a few
https://forum.atlas-games.com/t/thirty-tribunal-cases-for-november/7371/1 Tribunal cases – CJ did plenty
https://forum.atlas-games.com/t/a-story-seed-a-day-in-november/6284/1 Story seeds – Christian Andersen
https://forum.atlas-games.com/t/spell-a-day-for-november/6294/1 Spell a day – Gremlin44 did 27!
https://forum.atlas-games.com/t/a-faerie-a-day-in-november/6266/1 Fairy a day – Matt Ryan
https://forum.atlas-games.com/t/a-saint-a-day-for-november/6280/1 Saint a day - CJ
(Also "a mage a day" in Nov 2011 matches the first few posts of Magi of Tom). Clearly November 2011 was the great season for mass participation, and revealed the strengths and weaknesses of the format. Timothy Ferguson created a thread on this and people discussed the format.
While "vanilla covenants" has the difficulty that Through The Aegis has five pretty good covenants (well, I can't be bothered writing up a maritime covenant since reading that book, Jardin is what I like about Provence, the other three all have strong themes) so deliberately limiting yourself to being "vanilla" (just core book + Covenants) makes it hard. Vanilla covenants vol 2 could be useful if people want to have something to write scenarios for or test out scenarios for fanzines.
The link david.berco.online.fr/pages/downloads.page=012.html doesn't seem to work. Neat stuff shared here guys. 
Sorry : my Web Hosting Provider (free.fr) is (EDIT: was) temporary off-line…
You may also download the pdf from this link :
https://drive.google.com/file/d/0B9Ang_Fq3fbwbDZWaENXRDl4cGc/view?usp=sharing
For my part, I requested a list of these community projects so I could mention them in my editorial for the next issue of Peripheral Code. The "30 days in November" projects are a great example and I am trying to include as many of them as I can find.
I will not have room to include every blog and website related to the game -- but reviews and surveys of those pages would be a great column or regular feature!