Hello guys!
I started hosting our apidocs on website, like old Bukkit JD.
It will be updated up to 2 days after a new commit on github.
Sponge JavaDocs
I hope this will help in the development of plugins for Sponge.
Best Regards.
Here I give a commit SHA which was created the current version:
695aaf88d0e86cec4cd5338b2ff2eb58f11a327b [19-12-2014; “Merge pull request #303 from SpongePowered/feature/events”]
Very nice of you 
Although I have heard something about sponge doing this themselves at a later date Im sure that many will find this usefull, myself included
The bukkit javadocs were incredibly useful. This is good to have some ones for sponge available this early.
Thanks, although I believe someone already did this. Just not sure how up-to-date they are.
Last update on their post would say October 25th, so a month+.
yeah, I noticed that much, but not sure if the API as it is has substantially changed since then, so not sure how invalid it is at this point, I suppose I should say.
Not to hijack this thread and not trying to be someone who understands java 
(because i don’t understand a lot from it) but I created some Doxygen docs (or how’d you call them) and host them here:
http://sponge.ghosters.nl
Just because I find reading javadocs a bit hard 
I update them when I see that there is a recent change so it may take a while for it to be updated.
But if you find reading Doxygen easier it may be something to look at
Doxygen: website/doxygen/interfaceorg_1_1spongepowered_1_1api_1_1block_1_1_block.html
javadocs: website/org/spongepowered/api/block/Block.html
And this is why I will always prefer Javadocs.
Updating now files on website 
Website is up again, because official Sponge JD are still on 1.0.0 api, here it’s the latest.