instahood.meteor.com with me while I was prepping mapping tools for my most recent 50 Sites presentation. I love mash-ups like this, that take advantage of the geo tags in photos to merge them with maps.
Get to know your neighbors based on what they are posting to the web.
Are you looking at a new house? Check out what your would-be future neighbors are like before buying.
Traveling to a new city? Get to know the people and sites before you arrive.
Wonder what is new on Instagram right now? Take a look.
Of course there are many other sites, like WorldCam, that do this same thing, so take a look around and pick the one you like the best.