Other places to look:
Smart tags for wimps - create your own using Excel
If case you missed it, Smart Tags look like being ON by default. If you don't want your webpage SmartTagged, you'll have to modify your webpage.
Here's the poop on how to turn them off:
<meta name="MSSmartTagsPreventParsing" content="TRUE">
But, if you visit:
and then read down the page a bit, you'll see that it's not quite as simple as that.
Other SmartTag-like slime: