No offense to the forums, but the reddit post has info you guys are lacking (such as the info on Mirror ball, which was the exact question OP was asking), and a much easier to read layout as it's all compiled in the first post, rather than have to read 3-4 pages of peoples comments/questions in the thread here. Self-promoting is fine, but it doesn't really help when you don't have the info needed - some of the info is from the forums, yes, but they actually managed to find a few important things not from here.
No offense taken - I agree with you that it's more concise. It just depends what you're looking for. Short textual summary of the most important changes? See the Reddit post. Shiny pictures and even a video of the changes (new Archon beam colors)? Our front page. A discussion about the undocumented changes? Our forum thread or the Reddit thread (whichever you prefer, I personally just don't like threaded discussions that's why DFans is my home). It's why I linked both - I think you should never ever rely on a single source. Obviously, when I feel that DFans offers the same information or is even the original source of information, I point this out. If another source mentioned it first or has more information, I'll be the last person to not acknowledge this - just see all the external links in my FAQ or my (now deprecated) wizard guide :-)
http://www.diablofans.com/
There's also a thread on Reddit, which is using the thread on our forums as source, so you know where you'll find the news... just around the corner:
http://www.diablofans.com/forums/diablo-iii-general-forums/diablo-iii-general-discussion/85460-unofficial-patch-2-0-4-notes-share-your-findings