When CapGeek was no longer in service, people found themselves looking for cap information everywhere. We put together some cap information of our own in a Google Document that anyone here can use whenever they would like.
Many new sites have popped up since then that have better functionality and more fun tools, but as far as cap space itself goes, this works if all you need is a quick glance.
How it looks:
If you come across any errors, give me a heads up @MikeDarnay.