If you need to copy link addresses more than once, you know how annoying it is. You need to right-click, find the "Copy Link Address" menu item, and click it.
This extension makes your life easy. Just point to your link and hit your standard keyboard shortcut (Ctrl-C, or Cmd-C for Mac) and you're done!
To try the extension,
The extension doesn't accurately work with dynamically generated links in some sites, due to a jQuery/Chrome issue.
A prominent example is the Google home page (www.google.com). Here is a workaround:
(To spot the pages it won't work, look for the warning "Resource interpreted as but transferred with MIME type " in the Chrome Javascript console.