How often do you want to share a website with collegues, but also point out something specific on a webpage? The Awesome Highlighter is a website that lets you do just that.
Go to their website, enter the URL you want to highlight, highlight the portions you think are awesome, then send the link out. You can even save your websites, highlights and notes if you set up an account. Best of all, it's free. Firefox users can use a bookmarklet to run the app, and the website can even track how many users are viewing your highlights.
How often do you scream at message board because some idiot missed the point on a webpage. Highlight it and prove your superiority.
Awesome Highlighter via Red Ferret