一个是开源项目的bug搜索引擎（当你想要选用某个开源软件的时候，或是你发现有一些异常的时候，你可以先去看看是否有一些相关的BUG）

http://bugspy.net/

还有一个是图标的搜索引擎（那些ICON还是比较精美的，可以用来做UI的开发）

http://www.iconfinder.net/

(全文完)

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