The Wired-Marker add-on for Firefox gives you access to one of the best virtual highlighters I have seen thus far.  Being able to highlight on web pages in various styles and colors can really help you in a number of ways when doing research or working Online.

You can think of it as an electronic bookmarker that services as a guide with you go back to that specific web page.  Another neat feature is it also automatically records and saves your [...]