Diigo - Web Highlighter and Sticky Notes, Online Bookmarking and Annotation, Personal Learning Network.
Diigo is by far the best of the best one-time-article savers. Believe me, I have tried just about all of them and it has them all beat hands-down.
The only issues is it does have some bugs and their customer service is horrendous- expect your inquiries to be ignored. If they could improve their service a notch it would be a true blockbuster! by Oct 16