LinkedIn Adds Applications
They include a "reading list" app from Amazon, a file-management tool from Box.net and a travel-tracking app from Tripit. Not just anyone can put up applications on LinkedIn. Developers and companies have to go through a careful screening process before their apps are approved. External ads aren't allowed either.
But app providers such as Amazon can make money through retail sales and subscriptions offered to LinkedIn's 30 million members. More apps are expected to follow on the social networking site.--Mark Walsh