My first attempt at a browser extension. A dead simple way to add webpages to Instapaper. For Opera.
How to use
On Opera, install it at https://addons.opera.com/en/addons/extensions/details/instapaper-for-opera/.
Go to the extension preferences and set it up with your Instapaper username and password (if you have one). When you're on a page, click the button to read it later.
You can also select some text, and it'll be added as a description along with the item.
Support/Contact
I have a little page at http://blog.ramkumar.me/instapaper-for-opera.
You can also contact me at http://ramkumar.me/ with any questions.