This my friends is the future… combining different types of data to create useful applications. A guy combined Craigslist houses for rent and sale with Google Maps. While not an every day application, it’s a great example of combining two types of data.
Imagine the other types of data you could show:
#1: US Census Figures
#2: Cars for sale
#3: Private aircraft with empty seats for sale
#4: People wanting a ride to/from somewhere
#5: Gas stations with best and worst pricing
#6: Coffee shops (haha)
#7: Office space availability
Can you think of any others?