Wiki

The Berkshire Hathaway-owned CORT has begun using wiki to collaborate with its approximate 2500 employees from over 180 different locations. The company rents home and office furniture as well as helps to relocate employees to new locations. In using the new wiki service they have greatly reduced e-mail congestion and sped up the flow of information among the different branches.  They have stopped giving out emails to subordinates and administrators alike and instead require that they subscribe to the company wiki for all project details and updates.  Disseminating the vital information much quicker to those who need and can make appropriate changes if need be.  In CORT there are about 25 users and costs around 60 dollars per user. In a normal day around 100 people on average make contributions and another 200 view the site for information gathering. It is not that complicated of a math problem to see that using the company wiki instead of e-mail and other like services has saved the company much needed time and money.
How One Company Is Using Wikis and Blogs to Unclog E-mail Boxes