google

Google can be used to do calculations:
To use Google's built-in calculator function, simply enter the calculation you'd like done into the search box and hit the Enter key or click on the Google Search button:

• 15+28
• e^(i*pi)
• 350 feet in fathoms
• 160 pounds * c^2
• 2 cubic lightyears in liters
• answer to life the universe and everything

Watching google like a hawk

The The Anatomy of a Large-Scale Hypertextual Web Search Engine: This paper presents Google... a prototype of a large-scale search engine which makes heavy use of the structure present in hypertext. Google is designed to crawl and index the Web efficiently and produce much more satisfying search results than existing systems.

Google is also reachable under www.466453.com/. 466453 is the number you get if you press google on your mobile.

Google obviously tries to find out where a visitor is from and changes the url accordingly. So, for someone from germany going to www.google.com, google might redirect him to www.google.de. If google should be forced to use the english interface, use www.google.com/intl/en/.

GooOS the Google Operating System...

Google Rank Calculator: Enter an URL and a search expression and let the Rank Calculator find out where the URL is ranked.
www.googlerankings.com seems to be similar.

Urs Höltzle talks about google. Jim Reese talks about the technology behind google.

Checking a page's pagerank: http://www.lilengine.com/tools/pagerank-tool.php.

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