Using a portable camera to broadcast one's activities over the Internet 24 hours a day.
On the demand side, this lifecasting stuff would never have caught on if there wasn't an audience for what it produces. And there is, as we can tell from television's Big Brother. I can understand why people want to watch that show when participants are screaming abuse at one another or making fools of themselves in public. But there are plenty of people who watch it when everyone in the Big Brother house is asleep.
—John Naughton, "Caught in the grip of geekvision," The Observer, May 27, 2007
In effect, anyone who wants to wear a camera (and carry around a laptop with a wireless card) could be a star in this new genre. There was a rumour going around that actress Natalie Portman was in Silicon Valley looking for financing for a "lifecasting" project, one that would give people a glimpse behind the scenes. The actress's representatives denied the rumour.
—Mathew Ingram, "Your 24/7 life, with a web cam attached," The Globe and Mail, May 19, 2007
Justin Kan has strapped a camera to the side of his head, and he won't turn it off.
For over a week, Kan has been video blogging nonstop, 24/7. Everything he does (including going to the bathroom) streams live on http://www.Justin.tv, where his phone number is posted for fans to call him and a chat room facilitates discussion.
He calls it "lifecasting."
—Jake Coyle, "Justin Kan vlogs (with sponsorship) all day and all night on Justin.tv," The Associated Press, March 27, 2007
Here's an earlier citation that uses lifecasting in a slightly different sense:
WangYou Media's Buddy Ye has experienced pain and gain for seven years guiding start-ups in China's burgeoning internet sector. Having struck out with MeetChina but struck lucky with Ecantata — two similar business-to-business portals — the graduate of Chengdu's University of Electronic Science and Technology of China now sees a future in the emerging trends of podcasting, video casting, photo sharing, blogging and social networking.
The company's internet portal — wangyou.com — combines all elements of user-generated content in a service WangYou Media calls "lifecasting," essentially a one-stop shop for any content that its 3.1 million registered users can dream up.
—Stuart Biggs, "Chinese portal brings the internet and traditional media together," South China Morning Post, February 28, 2006