Following in the footsteps of , , and --all of which joined the nonprofit consortium recently--none other than Twitter will announce on Tuesday that it is joining the foundation as well.

"Linux and its ability to be heavily tweaked is fundamental to our technology infrastructure," said Chris Aniszczyk, manager of open source for the social networking giant. "By joining the Linux Foundation we can support an organization that is important to us and collaborate with a community that is advancing Linux as fast as we are improving Twitter."

'The OSS Behind a Tweet'

Based in San Francisco, Twitter boasts 140 million active users and 400 million tweets per day. The microblogging service is available around the world in 30 languages.Making all that possible are tens of thousands of Linux machines, according to the Linux Foundation.

MySQL, Cassandra, Hadoop, Lucene, Pig, and Memcached are also among the packages used at Twitter, according to a recent on OpenSource.com.