4 ms·

I had a similar idea for pool builders. Find streets where the majority of houses have pools and sell lists of the people without pools.

• jliptzin 12y ago
  You can go even farther - for the houses where you've identified pools, sell those addresses to pool maintenance companies.
• mrfusion 12y ago
  That's a good idea! Let me know if you ever pursue it. It would be a fun computer vision problem.