slashdot post -

http://slashdot.org/comments.pl?sid=438692&cid=22260244

" A consolidation of the Microsoft and Yahoo networks could shift a
massive amount of infrastructure from open source technologies to
Microsoft platforms.  Microsoft said that "eliminating redundant
 infrastructure and duplicative operating costs will improve the financial
 performance of the combined entity." Yahoo has been a major player
in several open soruce projects. Most of Yahoo's infrastructure runs
on FreeBSD, and the lead developer of PHP, Rasmus Lerdorf, works as
an engineer at Yahoo. Yahoo has also been a major contributor to Hadoop,
an open source technology for distributed computing. Data Center
Knowledge [datacenterknowledge.com] has more on the infrastructure
implications."