For those of us who can accept that some software knows where we are, Yahoo Aug. 12 trumpeted the launch of Fire Eagle, a platform that lets programmers write Web services based on users' locations.

Fire Eagle lets users submit and store information in a Yahoo repository that lets them decide how and with whom they want to share that information. Fire Eagle is probably best used for working and playing in the mobile Internet, though it lets Web, mobile and desktop applications update users' locations on the fly or manually.

Fire Eagle lets them hide themselves, change their preferences or delete any of their stored information.

Use Fire Eagle if you're willing to disclose where you are at a given time and place. The idea is that, eventually, a software service might find you to give you notifications of, say, a friend or a sale in the area.

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