Browser Tip of the Day: JSCalc calculator bookmarklet

It's not often that a bookmarklet really impresses me, but Cameron Adams' JavaScript calculator ("JSCalc") bookmarklet does. When you click on the JSCalc bookmarklet, it pops up a subtly-styled semi-transparent unobtrusive text field on top of whatever page you're viewing, which evaluates any simple mathematical expression you type in. It sounds simple, and it is, but its simplicity and its split-second installation (just drag the bookmarklet your bookmarks or bookmark toolbar) hooked me right away.

JSCalc works on Firefox and with some caveats in Safari and Opera, and not at all in Internet Explorer.