First, if you see anything odd going on with photos, let me know, since they'll be heading your way from someplace other than UHub central (which, to get all precise and all, is physically in Pittsburgh).
Where exactly, depends on where you are, because I've signed up for a content-distribution network. Basically, it's a service that will handle distribution of photos and other static files on the site, so the UHub server can concentrate on stuff like database queries, rather than trying to remember where it put that darn photo of Uncle Fred you want to see right this second. Not to imply the server is doddering or anything, because CDNs are at the heart of cloud computing, and that means UHub can now put on those uber-hot little rectangular glasses and hang out with all the other cool-kid Web sites at the club and I can bandy about phrases like "edge servers" Or, rather, I could once I figure out something called CNAME (Oh, God, I'm just a faux geek!).
In any case, if you're in the Boston area, the stuff will be coming from a server in New York, most likely. And this post is the first example - if you want to get all nerdy, view the info on the two photos and you'll see the URLs are a bit different.