Red Hat makes tons of money providing the foundations from which alot of the stated technologies can operate: Linux OS, JBoss middleware, cloud and virtualization technology, and major support for the biggie databases (MySQL, PostgreSQL).
They're the guys selling the picks, sluice pans, and LAMPs (haha) for the gold miners.
They're the guys selling the picks, sluice pans, and LAMPs (haha) for the gold miners.