Enlightened & Supreme Commission for Tourism
UPDATE: Hmm... Google's cached version of the Saudi Commission for Tourism's webpage refreshed rather quickly (and Alexa did not archive the page for archive.org). Now, all you've got is an apology for inconvenience caused by erroneous information, instead of an admonition warning Jews to stay away from the Arabian peninsula.
Maybe they should explain to we the inconvenienced whether this "erroneous information" is Wahhabist doctrine, or just the handiwork of some miscreant programmer.
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Original Post:
Recent attention toward Saudi Arabia's overtly anti-Semitic visa policy has led to a rather tight-lipped description of tourist visa requirements.
You might want to check Google's cached version of the page to see the real requirements for entry into Saudi Arabia.