For an idea of the u/c projects, check this post out. As stated above, in super tall thread.
For u/c:
http://forum.skyscraperpage.com/show...postcount=1994
For proposals, this one:
http://forum.skyscraperpage.com/show...postcount=1995
Typically every 1 or 2 months, I'll post updated list for u/c and proposals for NYC in both supertall/highrise compilation.
I prefer CTBUH data over Emporis, although Emporis is a little better IMO for Asian Cities, but for North America, CTBUH is the way to go.
The lesson to be learned folks is that there is a lot rising!!!
Lots more in the pipeline and new projects everyday added to pipeline or in some form of permit proccess which will eventually lead to ground breaking if it be 4 floors all the way up to 50+ floors.
Do note the lists are not everything. A lot is still missing, and depends on how you change the search parameters. For updated list of things, check the mid rise and high rise thread. Almost every post... like 90% of them, are projects in some way or some form.