One of the most complex features of Twitter (Twitter reviews) for new users to understand is the hashtag, a topic with a hash symbol (”#”) at the start to identify it. Twitter hashtags like #followfriday help spread information on Twitter while also helping to organize it.
- Stephen Dale
from Bookmarklet
"...Before they implemented their own employee social networking site, MyBT, BT (British Telecom) discovered that 4,000 employees had voluntarily joined a BT Facebook community in their own time. Employees were connecting online, in their own time, talking about BT, and BT wasn’t part of the conversation...."
- Alexander Rode