According to a Russian news site, Kaspersky Labs states that terrorists will launch attacks which will paralyze the Internet this Thursday.

I'm holding off my bets through, I think this will be a day just like every other on the internet. Source: Internet Storm Center

You can keep track of the status of a few key routers on the Internet at Internet Traffic Report, the only sight of problem is at Sri Lankan but that was due to a very different cause.