Notes"Leave it to people in the wiki market to know how to collaborate. Nearly 20 different wiki providers have teamed up to offer a new Firefox extension that will notify users whenever they are on a page that is publicly editable, using a standard icon that sits in the same place the RSS autodiscovery icon appears. Clicking on the icon (img. on the left) will take you to that page's editing interface."Unfurl
Notes"The Universal Edit Button is a green pencil icon wiki.png in the address bar that indicates a web page is editable. It is similar to the orange "broadcast" RSS icon ExampleRSS.png that indicates there is an RSS feed available." Here's another thing I've been using for awhile that I can't believe I hadn't already bookmarked.FeedUnfurl
Notes"Here's a simple WordPress plugin. Save the following as universal-edit-button.php and place it in the /plugins/ folder, then activate it in admin. "FeedUnfurl
Universal Edit Button - Universal Edit Button
Wordpress plugin - Universal Edit Button