ChromYQLip (pronounce as Chromy-Clip) is an extension for page scrapping.
Select some text on a page and click the extension icon, it will populate the URL and xpath of selection. Click "getmashup" to get a lightweight page which loads your content.
It simply uses YQL to do everything.
Sample URL and XPath for advance mashup building
URL="http://twitpic.com/photos/$1"
Path="//div[@id="image-"]/div/div[1]/a"