On 3/21/2013 4:02 AM, Igor Costa wrote:

    - Microsoft Bing Maps

"free" version (requires key) has 125k transaction limit per year (1 transaction = 8 tiles--depending on the scale about 1 screen's worth). that's not a lot of views. on the bright side, ms's accounting is messy & confusing, even to themselves--i know folks who's applications blow thru that limit on a weekly basis. but ms has promised to clean up their act by sept 30th.

    - Yahoo Maps

getting shut down.


its technically easy to scrape map tiles from any provider but legally not feasible. if i recall correctly, modest map used to scrape google tiles at one time until google forced them to stop. in terms of spatial data coverage & quality (which are all that really count), losing google from the flash/flex community was a massive blow.

you missed ESRI which doesn't have as much public spatial data as google but is way more sporting w/what it does have than ms--ESRI gives you 50 million transaction per year (defined the same way as ms).

http://services.arcgisonline.com/ArcGIS/rest/services

plus ESRI is old school GIS, so you get "free" access to quite a few analytical tools. for instance:

http://bit.ly/11hQpE2

ESRI has a pretty decent flex API:

http://resources.arcgis.com/en/communities/flex-api/

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