It was down for me too.
I though I was going crazy. Someone in our office asked me if our internet was down. So, I opened up IE and got a page not found (my start page is Yahoo!). So, I went and asked a few other people if their internet was down. It was for everyone except for 2 people. I then tried to ping out to Google and got a reply, but still no "Internet Connection". So, I reset our router a couple of times and kept getting the same results. Finally, I tried to go to a site besides Yahoo and things worked. I guess MOST people in my office have Yahoo as their start page! lol
Once I discovered that it was Yahoo that was down, it made me wonder if the Microsoft deal went through

a.k.a WOLF!