简介： Google 地图是一种免费服务，可通过 Internet 提供基于浏览器的方位向导以及特定位置的地图。

Summary: Google Maps is a free service that provides browser-based directions as well as maps of particular locations through the Internet.

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一种具有大量用户的非常流行的免费服务是Bloglines。

A very popular free service with a large user base is Bloglines. Bloglines offers these features.

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注意，Kerberos是一种免费软件，它使用Active Directory提供Samba服务器的功能和原生身份验证。

Note that Kerberos is free software offering the functionality of a Samba server and native authentication with an Active Directory.

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