有谁知道我可以用于企业和地理编码的服务/数据库?
我想知道像 Foursquare/Gowalla 这样的公司如何以及在哪里找到并更新他们的位置/企业列表。
它是网络服务吗?他们是否购买目录并将其输入数据库?
I was wondering how and where companies like Foursquare/Gowalla find and keep up to date their list of location/businesses.
Is it a web service? Do they buy a directory and enter it into a database?
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这是我在 http://www.quora.com/Where-or-how-does-a-company-like-Foursquare-get-a-directory-of-all-locations -和他们的地址
This is from a comment I found at http://www.quora.com/Where-or-how-does-a-company-like-Foursquare-get-a-directory-of-all-locations-and-their-addresses
Google 提供免费供个人使用的地理编码服务。
对于商业用途,它的成本是几美元,但仍然相当合理。
API 非常简单
http://code.google.com /apis/maps/documentation/javascript/v2/services.html
Google has a geocoding service that's freely available for personal use.
For business use, it costs a few$, but it's still pretty reasonable.
And the API is pretty straightforward
http://code.google.com/apis/maps/documentation/javascript/v2/services.html