This is also nice:<p><a href="http://www.google.com/search?q=gazpacho" rel="nofollow">http://www.google.com/search?q=gazpacho</a><p>Check the sidebar...
Another cool feature (is this new?): A scientific calculator
<a href="https://www.google.com/search?q=ln(4)%20-%20sqrt(3)" rel="nofollow">https://www.google.com/search?q=ln(4)%20-%20sqrt(3)</a>
Other search engines have this feature, too. For a refreshing change from Google, I prefer this: <a href="https://duckduckgo.com/?q=ip" rel="nofollow">https://duckduckgo.com/?q=ip</a><p>And if you really need to confirm your IP address with Google: <a href="https://duckduckgo.com/?q=!g+ip" rel="nofollow">https://duckduckgo.com/?q=!g+ip</a><p>(check out the many other '!' features)