This page essentially lets you highlight words on other pages by use of a proxy
and frames. The neat thing here is that it can also let you easily test out how your web site migth appear to people external to you -- that is, an it
pulls wa web page for you from my server. Images and subsequent pages will be pulled from you so do not consider this to be an anonymizing service. Additionally, it will tell you the overall site rank of the site you fetch. Furthermore, the page will be fetched compressed and possibly send back compressed. I am located in Seattle, WA so you can get some timing info as well about your page or others.
This only will proxy http pages, not https.