看了下Instapaper的FAQ，分类保存大量的文章，推荐使用Pinboard或者Evernote。希望找一个可靠的保存文章的服务，即使原始链接失效也可以良好的阅读，同时支持分类管理，大家一般使用什么服务来收藏文章呢？

http://www.instapaper.com/faq

“Instapaper is designed to store links you’d like to read once and then discard.

There’s no limit to how many articles you can store, and your archive of read items is kept indefinitely (unless you delete from it).

But Instapaper isn’t optimized for keeping track of thousands of pages. This isn’t the right tool to collect, categorize, tag, filter, and search the contents of every web page you’ve ever found — for that sort of use, try Pinboard or Evernote.”

我自己收藏网站的话一般使用Delicious。
收藏文章没有习惯用某一种固定的服务，保存网页到本地、Instapaper、Delicious都偶尔用到一下。

寻找一个可靠便捷的保存文章的服务。