Twitter dominated talks big and small at last year's BlogWorld -- and the conversation landed in the Guinness Book of World Records.
Attendees at the Las Vegas social-media mecca were challenged to tweet
the hashtag #beatcancer, and it spread, setting a record for the most
tweets (700,000!) in a 24-hour period, and raising $70,000 for cancer
research, thanks to corporate partners eBay/PayPal and MillerCoors