和scrapbook比,这个扩展Zotero也好.

http://www.zotero.org/

Zotero [zoh-TAIR-oh] is a free, easy-to-use  Firefox extension to help you collect, manage, and cite your research sources.

有些网站的图片scrapbook不能保存,这个扩展也搞定.
感觉还是不错.