Alisdair McDiarmid has produced a walk-through 
for one of Quicksilver’s lesser-known but very powerful time-saving tricks—executing very fast web searches in Wikipedia, on Amazon, news sites or wherever.
I knew Quicksilver could do this, but hadn’t forced myself to experience how good it is until today.
By highlighting some text and pressing ⌘-E, you can copy text to Mac OS X’s shared find clipboard.
Then, by bringing up Quicksilver and selecting a web search bookmark (there are hundreds of pre-made ones to choose from for every imaginable query), you can search your web site of choice in seconds:
Now I can find books on Amazon, the latest news from the BBC on the rise and rise of Borat, definitions for obscure technical terms and acronyms on Wikipedia, words in the Oxford English Dictionary or software on MacUpdate in much less than a tenth of the time it took me yesterday.
And so can you.
[Props also to Allan Odgaard of TextMate fame whose walk-through on this feature seems to be the original.]
