Thanks to AddThis support, you can now save pages to your list directly from over 500,000 websites.
On any site that uses the popular sharing widget (example to the right), you’ll now find Read It Later listed as an option. Simply select Read It Later and it’ll drop the item into your reading list. The next time you share a page, RIL will be listed at the top of your options.
The widget is customizable and can be added to any site. For more, check out AddThis.