you can get new certificates if desired from Symantec.
List of those hit and safe here. Hardest hit are Google and it's services, Youtube, Yahoo, Facebook, Instagram, and others.
You can check if a site is fixed in this link.
Smosh tells CNET what it took to make it big online
Internet sensations Ian Hecox and Anthony Padilla discuss how YouTube has changed and why among all their goals, "real TV" isn't an ambition.