Yahoo is going to Open Source more stuff...

Yahoo is a huge user of Open Source software.  They have released several of their "non-core technologies" already and according to this interview they are getting ready to release more.  If your company has the option I think the CTO's comments make a great case for doing it. 

Brian Wagner

Brian started working with *nix in while a student at Kent State University in the early 90's. In 1995, as an E-Mail Administrator for Caliber Technology (now part of Fedex) he was tasked with administering Sendmail on both Slackware Linux and Solaris Systems. His first home install of Linux was MkLinux DR1 in 1996 on his 60 Mhz PowerMac. Since then Brian has been working and consulting on Linux and it's uses in the Enterprise to support everything from E-Mail, Firewalls, Web and File serving to custom cluster solutions and grid solutions. Brian has had the opportunity to work in both Fortune 500 companies and small 2 person organizations. This has given him the unique insight into the differences every size business faces.