Around 2 years ago while working on a geolocation project I researched a few alternative services to cover our reverse lookup needs (coordinates to address). T

Around 2 years ago while working on a geolocation project I researched a few alternative services to cover our reverse lookup needs (coordinates to address). The difference in quality of data for the above mentioned process between MapQuest and Google, and then Google and OSM, was quite telling. Everyone who read the resulting report was also puzzled. OSM was about 80% accurate, Google was about 90%, and MapQuest was over 98%. Also worth mentioning is that only two of these sources let you store the data (Mapquest and OSM). Someone else on my team wanted to use Canada Post's geolocation data. Do not. It is extremely bad. We ended up running a service off MapQuest for advertising by mail using data from web traffic. The mailed letter or advertisement could be in the mailbox by the next day. The UX over the same period has gotten noticeably worse. The embedded maps that use two fingers to move around the map is my favorite UX decision of all time...