[jamwt]

Can't elaborate, but there's quite a bit more to it than that. The rabbit hole is pretty deep.

[baddox]

Can anyone speculate? The only thing I'm coming up with is that it might require a geo index for quickly calculating the distances between a huge number of location pairs.

[Cherian_Abraham]

http://www.quora.com/Bump-Acquired-by-Google-2013/How-does-B...

[11185d]

Blocked once again by Quoras no reading more than a few words of the answer without logging in rule:(

[zemo]

tack on a share=1 query param at the end of the url. http://www.quora.com/Google-Acquires-Bump-September-2013/How...