We know Google is on Twitter, so is AdWords and we know at least two AdWords reps are also. Yesterday, AdSense joined Twitter @adsense. The way AdSense joined was in Google style, the first Tweet was:
Ads by 47 6F 6F 6F 6F 6F 6F 6F 67 6C 65
What does that mean? Well, if you use an Hex/ASCII converter and plug in 47:6F:6F:6F:6F:6F:6F:6F:67:6C:65 it translates it to "Gooooooogle." As you see on many Google AdSense ads, they have a line that reads "Ads by Gooooooogle."
Forum discussion at DigitalPoint Forums.