Lookmark has been closed as of June 15, 2013.
We'd like to thank you, our users, and our investors again for giving Lookmark a chance. Please feel free to email us with any questions or comments.
If you'd like to use a similar service, you can try Reading.am or Kippt.
Dave, Amit, Drew, and Greg
P.S. Looking for a job at a startup? Check the list of startup jobs on AngelList.