What amazes me is not just the international connections but that I usually don't even realize when I deal with someone overseas. Academic research has gone truly global, where I can call, instant message, email and send papers to colleagues across oceans as quickly and easily as across campus. And as we get more used to this technology the smaller the world becomes and at some point we stop connecting people to countries but rather to points on the internet.
On the other hand these colleagues didn't get to share my experience with Chicago's first blizzard of the season. Too bad I couldn't IM the snow to India.