nb1 writes:  

Head over to the Apache Software Foundation's website and you'll see an announcement posted by ASF Chairman Jim Jagielski welcoming Facebook as the open-source company's newest sponsor.

"With Open Source in its DNA, Facebook is an enthusiastic champion and active contributor to the ASF, including the Hive subproject of Apache Hadoop, as well as the popular incubating projects Thrift and Cassandra -- all originally developed by Facebook," Jagielski wrote.

Per the announcement, Facebook signed on as a platinum-level sponsor, the highest membership level available and one which requires an annual donation of at least $100,000. Other membership levels include Gold ($40K/year), Silver ($20K/year), and Bronze ($5K/year).

The Apache Software Foundation