Have you been to timhortons.com lately? Drop by and you’ll notice a widget at the top right that tells you your local weather forecast – and suggests something to eat or drink that goes with that weather. (How did they know I could use some chocolate?)
It’s a very cool feature that could work on content sites, too. For instance, a recipe site could feature a recipe that matches both the weather and time of day – give me a waffle recipe on a snowy Saturday morning, and a barbecued pizza on a summer afternoon.
It would require some programming, but overall, it’s a simple way to bring local relevance to a major site without a ton of effort.