I think that Google had blocked inbound access from your network (if you're not directly connected) or to your computer's IP address (if you're directly connected to the internet). Google did this because, like the page says, a spyware or virus is sending them automated requests. The requests came from your IP that's why they blocked you. You may want to run a system check to see if you are infected with spyware or a virus.
Oh I almost forgot, If you are a dial-up user or if your IP address is dynamic, you may want to disconnect then reconnect to change your IP address. That way, you could access Google with you "new" IP. But be sure to run a system check to avoid more problems ok?
Linux users would virtually never experience that.
Wow, this is getting weird...
M0rpheuS made a topic about this already. It's here.
thnx for showing me that link...