It's quite important to review these small American airports because if you are ever travelling via the US, you will likely have to make some odd detours because of how the routing system works there. There is often a choice about which stopover you use.
Philadelphia Airport is great. It has an enormous Ben & Jerry's stall, the likes of which I've never seen here, and other good American style food outlets. I bought a top for about $US90 in one of the boutiques- put it down to jetlag and boredom but I still like the top, it's very unusual and the shop was clearly an outlet for local designers. There were nice views of greenery out the windows, and the place was clean and modern, and the seating was comfy enough.
Also the staff in the gates were nice. I had a good experience there. None of this cattle-market/security overkill bullshit. Some American airports are crap you see.
I don't really want to go down the road of reviewing airport websites here (too much like my day job) but at a quick glance Philadelphia's website is much better than any others I've seen so far; it includes accessibility features, has a nice design and has an interactive Flash map of the airport.