Mark Pilgrim has talked about this before, but I'll reiterate. use the acronym element in html more frequently. This should be your new years resolution.

You'll notice in a couple other entries this month there are some words that are bold and italicized. These words are marked up with the acronym tag, and the CSS on the website renders it as bold italic. (woah! there's an acronym right there!) When a user moves his/her mouse over the word, it will display whatever you have put into the title attribute of the acronym element, thereby allowing you to give more information about something. In the aforementioned entries, I gave definitions of some winemaking related terms that I figured people wouldn't know what they were (since I didn't until recently). More often you'll use it for actual acronyms, such as the one above.

So here's a quick chunk of code to show you how this works:

<acronym title="Cascading Style Sheets">CSS</acronym>

There. Now go out, and mark up your stuff. Your readers will appreciate it.

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