Lifehacker.com is a great source of cutting edge cyber info. I'm no computer expert (although I am married to one) but I still find some amazingly useful links there. Their latest article is well worth reading and bookmarking: "Top 10 Obscure Google Search Tricks." Be sure to check out the reader's comments at the end of the article- some of the best tips of all are there! Click here.
While you're at it, Arthur wrote an excellent column for the Times about search engine tips in June. Click here to see it.