Remember to keep any browser you use updated. Similar vulnerabilities have been found in Chrome and Firefox too in the past few days, though they do have bugfixes out in their most recent updates whereas Microsoft is still working on one for IE, last I heard.

Flash Player is another thing you should update if you have it.

And of course, be sensible about what links you follow - don't just mindlessly click whatever link you're sent, whether it's in an email from an unknown sender or in chat from a trusted friend. If you don't visit a site that takes advantage of this vulnerability, you'll be okay (in this case).