You may notice occasionally when you’re searching for a word, Google will offer a link to Web definitions of your word. This is part of Google’s hidden dictionary, a search of definitions on the Web.
Say you’d like to find out what a “clew” is. You could search for define clew, and most of [...]

Not only can you search the Web with Google, you can use it as a calculator. Google’s calculator is more than an ordinary number cruncher. It can calculate both basic and advanced math problems, and it can convert measurements as it calculates. You don’t even need to restrict yourself to numbers. Google can understand many [...]

Example
Search Webcams
Query
inurl:”viewerframe?mode=refresh”