I don't know why this topic hasn't been started before but I'll get the ball rolling on this one. The following are a selection of places to go and check out for the best non FFG or ToY material available online.
Firstly an alternative forum for you to check out - for just about all you need in translations of the French material and a whole lot more. But don't just browse join. Set up by Sundance , it's members number some of the best producers of home brew material out there , their stuff is as good as the the real thing from FFG and ToY.
tannbunker.myfastforum.org/index.php
The next is the blogsite of probably the best , most consistant producer of unofficial Tannhauser material non other than Doc Savage and his able assistant Littlewars. They are so good that they both got a mention in the credits of the latest French expansion Daedalus.
Another blogsite to check out is from Scottie "Wolfe" . Not quite so much material but again he was mentioned in the credits of Daedalus. His stuff has recently been spiced up by another Daedalus creditee Malechi.
www.scottiesthscenarios.blogspot.com/
This one is set up and run by a French player by the name of Plageman. Has good contacts with ToY and was also mentioned in the credits of Daedalus.This site is in French and English and is basically an archive of some great stuff. The French side has slightly more in it than the English but it is mostly duplication of material which has been translated from French to English or English to French.
blacksheep.eclipsenoire.net/main.php
You should also have the official ToY website in your Bookmark/Favourites. You can view via google's website translator , I know I do , just cut and paste the web address from your address bar and let google do the rest. There's a monthly new token available as well as an extra quarterly contested tokens plus a whole lot more. Translations of these tokens are usually up fairly soon after ToY releases them on the TannBunker forum.
And of course there is the FFG pages but since you're here you probably already know about that but here's the link for completeness.
new.fantasyflightgames.com/edge_minisite_sec.asp
This is basically the list that I check on daily - TannBunker & ToY or weekly - Doc's , Scottie's & Blacksheep basis to keep up with the latest.
That's a start but if there are any I've missed please add them to the list as I'd be interested to go and look at them myself.