Add ablility to bookmark questions during review

Hi Nitya,

That sounds like a great idea. I'll see what I can do about integrating such a feature into the website. I certainly would enjoy using this feature; keeping a list of certain questions would allow me to better practice certain questions, analyze them, or even use as examples when teaching others. Easy access to notable questions would be a great way to increase practice effectiveness.

Suggestions and ideas from our wonderful community always brighten up our day and help Khan Academy thrive. Thank you for your awesome suggestion!