Where is a good place to look for economic information?

If I wanted to gather some information about how much Americans are currently spending on various categories of goods this month, last month, a year ago, etc.
How about if I wanted to know about how much specific companies are earning?
I understand that some figures are made public, but I never have understood how to go about getting them.
Any general directions or specific websites or,... you see? I just don’t really know how to get at the information that I want. Maybe it isn’t all compiled neatly, or maybe it is. I still don’t know how to get my hands on it.
Any information at all would be helpful and I would be grateful,