This is a great site that combines the power of geography and social media. You can map where your twitter followers are (if they make the data publicly available). Additionally, you can pan, zoom and identify specific followers. Can you find yourself on this map (followers of @APHumanGeog)?
(While I have your attention), thanks to my over 425 Twitter followers and thank you all for making this 'Geography Education' site get over 10,000 hits in less than two months! Thank you for spreading the word to other geographers and educators.