When I got up this morning, only Google and its related websites were working when I tried to browse the internet, nothing else, just Google. For a minute, I was beginning to think that Google really was the evil and satanic entity they seem to be, because nothing I did as far as what was on their support forums seemed to help . . . so, I restarted my modem, and that seemed to do the trick.
But apparently, this is a common problem not related to browser issues, viruses, spyware, or anything like that, it's apparently a connection problem of some kind.