PUBLIC MARKS with tag geolocation

Summary: This paper is an introduction to Earth-oriented coordinate systems, projections, models, and mapping. While not specific to any technology, this information provides valuable background for those who will use spatial data in SQL Server.

reverse geocoding: http://firecenter.berkeley.edu/proxy/geoservice.py/reverse_geocode/-122.2584/37.8675

One of the coolest things in Mobile Web Server 1.3 beta has to be the Location feature. It's a bit hidden down there in Presence application so chances are you haven't even noticed it yet.

Trust user data above all. If text has been entered, an address selected or an item scrolled to, that is more important than most anything offered by software.

a pure Javascript library which you can use to start playing around with geolocation before we actually get it into the browser. This library provides exactly the same API as would be provided by the browser. Although it can’t offer GPS-quality data, it does provide a decent city-level geolocation based on your IP.

Openlocation.org hosts a wiki, a participatory blog, a discussion group, and is working towards developing APIs that unify multiple available location-based resources in an open and participatory manner.

Your cellphone and laptop leave an invisible trail. Collecting this data is know as Reality Mining. A formal definition of Reality Mining is "the collection of machine-sensed environmental data pertaining to human social behavior".

The Contacts Nearby application allows users to discover geographic locations of other people in their extended social network. Social networks or “friend graphs” are getting increasingly popular on the internet and allow applications to become aware of trust relationship between users. Combine this information with the geographical location of each user and you get a valuable tool in possible emergency situations.

L'API n'est pas protégé par un login. Avec une addresse comme

東京都世田谷区北沢1-1

on reçoit en retour:

{"result_select":[[{"text":"東京都世田谷区北沢1-1","lat":"35.660823","weight":2,"type":"address","lng":"139.676925"}]]}

The Livedoor Blog Map finds geographical expressions from blog articles and add their latitude and longitude information to the articles. Accordingly, positions mentioned in blogs can be displayed in the "Livedoor" map, even though blog writers do not provide such information by themselves.

One place I see the desire to separate the two webs is in geolocation. Location is often billed as the next killer-app of the mobile world, and people generally assume that it is a feature that will be bound to mobile devices.

Several years ago, when Nokia bought GPS navigation company Gate5, most people were confused. When they announced Nokia Maps, it was slightly more obvious, but I think they’ve only shown off the tip of the iceberg for the Nokia Geo-Location services. Here’s why: 1. Nokia said last year that GPS would soon be a standard feature on their handsets. Today at the Mobile World Congress, they announced 4 handsets, of all range, and they all had GPS, as well as photo geotagging built-in.