Topic web crawler search strategy is the core of professional search engine technology.

主题网络蜘蛛搜索策略是专业搜索引擎的核心技术。

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Thus begins a studious and academic analysis of the fun, happy, bouncy, up-beat song "Lookin 'Out My Back Door" as it applies to the topic of Web security.

因此，我们首先从适用于Web安全性主题的方面入手，对有趣、愉快、活泼、乐观的歌曲“小心我的后门(LookinOut My Back Door)”进行认真的学术分析。

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Part 2 introduces a common topic for almost all modern Web-based applications, the concept of user authentication.

第2部分介绍了所有现代基于Web的应用程序所共同的话题，即用户验证的概念。

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Jon Hein, the creator of the Jumptheshark.com Web site -- which charts the rise and fall of TV shows and other pop culture -- says "The Simpsons" is by far the most popular topic on his Web site, and there have been rumblings that the show has leaped the fish, or at least started turning into chum.

CNN: A milestone for 'The Simpsons'

Google also likely will make blog content searchable by topic, thereby driving more Web traffic to Google's traditional search site.

FORBES: Magazine Article

Each cluster features a CNN article surrounded by links to stories on the same topic from elsewhere on the web.

FORBES: CNN Launches Zite-Powered Aggregation Pages