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most services that use google maps have the Longitude / Latitude stored in the source to be sent to google maps to render their markers.

However on this site (sorry Chinese) I can't find this information for Latitude Longitude of their items. SO how does google know where they are supposed to render the marker?

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up vote 5 down vote accepted

It's encoded here:

I'd guess they are using an address instead of coordinates.

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Using the example from underdark

if you - click the 分享链接 (link) button it exposes the Latitude and Longitude

Long URL,121.491474&sspn=0.011871,0.022724&brcurrent=3,0x35b270e5eeb60b11:0x9390f7d4e16ac67d,0,0x35ad8c73cd3952c7:0xbb190e9364c4e592%3B5,0,0&ie=UTF8&ll=31.234723,121.491474&spn=0.011871,0.022724&z=16

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Cool, however this means that the longitude latitude never came from the original site. Just a string. (in other words it's only as precise as google interprets it) – Moak Mar 16 '11 at 15:40

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