He called his enterprise Project Gutenberg.

他把这个工程叫作古登堡计划。

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Project Gutenberg has tons of old e-books you can download for free.

古登堡计划拥有大量的旧的电子书，可以免费下载。

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Project Gutenberg, a venerable initiative to make out-of-copyright texts freely available

Project Gutenberg，一个值得尊敬的计划，使无版权文本可自由使用

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Project Gutenberg and Archive.org are the two main online repositories of downloadable texts.

BBC: Free e-books provide unlimited holiday reading

During the lifetime of Project Gutenberg alone, the average time a book stayed in copyright in America rose from 30 to almost 100 years.

ECONOMIST: Michael Hart

Now, this isn't just a consumer tablet -- Spark's aimed at "those who love writing great software... using the typical Linux tools" -- but it will offer access to ebooks from Project Gutenberg, plus Qt and QML apps, too.

ENGADGET: Meet Spark, the 200 euro slate packing Linux-based Plasma Active UX