As recession-minded businesses cut back on travel for employees, online communities such as Second Life are filling the void. More than 1,400 companies and agencies now use Second Life avatars to hold virtual meetings and conduct training.
A small, wearable camera that captures images automatically could change the way memory loss patients, in particular those with Alzheimer's, are treated, experts say.
The Twitter community is abuzz this week about the site's new "Lists" feature, which allows users to create collections of interesting people to follow on the micro-messaging service.