Pocket (which used to be called readitlater) is a superior option in my opinion http://getpocket.com/ it has a desktop app, ipad, iphone, android, chrome extension ... and integrates with a shitload of apps (Newsblur, feedly etc etc). It also very beautifully designed. I use it every day, and have done so since it was first released.
Except one is a bookmarking service that allows you to tag, it and the other is a reminder service... rereadit.co talks about this on the front page. Bookmarks you have to remember to go back and read it. This notifies you even if you forget to go to the bookmark.
It seems this provides a slightly different service. It creates email reminders to remind you to go back to an article. I don't think Pocket has that functionality.
I use pocket as well and it's great for marking articles to read later. I built ReRead so I would be reminded (by email) of articles that I should read again at a later date
