Analysis of information sources in references of the Wikipedia article "VATSIM" in Portuguese language version.
There now exists a vibrant community organized around VATSIM, as well as remarkably complex and robust software supporting these activities.
It formed in 2001 when internal politics in a precursor network, SATCO, caused a rupture that resulted in two rival networks: VatSim … and IVAO
..the network has had just under 130,000 accounts registered, and has more than 10,000 active users…
…is so realistic that some commercial airlines are starting to use it to train [their] pilots…
In 2005, El Al, the Israeli airline, required more than 700 of its new pilots to go through a personal computer simulation that was hosted by the members of VATSIM
