From Copyblogger's Post on Avatar.
Here are some great ways to rework your content:
Rewrite your headline. You’ve come a long way with your writing (you’re reading Copyblogger, right?). It’s time to see if that great old post with a boring headline from the early days could use some magic.
Create a bulleted list. Lists are easier for your readers to scan and get workable ideas from. Lists seem to talk to your readers, rather than at them, the way some paragraphs can.
Turn it into a series. If you find that what you have to say about a particular older post becomes a little longer, why not rework it into a weeklong series? These can make for some of your most valuable cornerstone content.