Because it drives me nuts...

From xkcd/394:

On a serious note, "kB" is "kilobyte" and "kb" is "kilobit." An uppercase "K" is "Kelvin," and so it should never be paired with either "B" or "b". For most modern machines, a "B"yte is 8 "b"its, but there is NO GOOD REASON to assume this case. The meaning of "kilo" is context-dependent, though it's computationally convenient to use 1024 rather than the standard 1000 (because computers address things in base-2).

Google School: Synonyms and Info

From Google School:

Google School: Rank Wikipedia articles in your results

If you want to get general background on something with Google, append the word "info" or "information" to your search term.

If your words appear in the title of a Wikipedia page, Google will list that article at the top of your results, for a convenient way to search both Google and the Wikipedia at once. --Gina Trapani

Also, from Lifehacker: 88 Tech Tricks to Turbocharge Your Day, by Gina Trapani:

Synonyms (Chapter 9, p. 223)

Search for synonyms using the tilde (~) next to keywords. This comes in handy when you are searching for a concept rather than for a specific word or sequence. For example:

• ~nutrition ~information muffins returns exact matches as well as matches on Muffins Food Facts and Muffins Vitamin Information.
• ~car turns up information on trucks and vehicles.
• A search for ~pen yields pencils, graphite, and sketch.