Ghada’s Reviews > The Joy of Search: A Google Insider's Guide to Going Beyond the Basics > Status Update

"The Historical Thesaurus of English has all the words from Old English days until now—in both obsolete and current definitions—all extracted from the Oxford English Dictionary, and organized by their meanings and dates of use. This way, each word shows up in its own era, demonstrating how even simple words have changed."

Be aware of duplications in the content you find. When the duplications are unattributed, you have to be a little wary about the content. It might be correct, and the duplication is just careless editing, but it also suggests that the authors are not paying particular attention to their writing. As a side effect, texts that have lots of duplicated content don’t really count as another citation. It’s just copied.

"Putting a single word in double quotes makes Google search for that word without any spell corrections or substitutions. This is useful when you’re looking for an intentionally misspelled word (for instance, when you’re searching for a word that’s spelled as part of a dialect, such as “dat” for “that”), or a place-name with a spelling that’s close to a regular word"