The search engine to end all search engines, developed at StanfordUniversity. Running on what is probably the world's biggest Linux Cluster, currently processing over 150,000,000 queries a day, searching a multi-terabyte web index for every query with an average response time of less than a quarter of a second, with near-100% uptime.
Besides the main Google page, there are region specific ones like the NewZealand version, which appear to be mainly about selling regoin-specific adds and ``Sponsored Links''
http://www.google.com/news?q=linux&num=50 can be a good alternative to SlashDot for those not into flamefests (at least that's what I use---StuartYeates).
If you're outside NewZealand, it's very likely you found the WlugWiki through Google!
An ex-WaikatoUniversity student from the Digital Libraries lab used to work for Google.
32 pages link to Google: