Keeping track of what you want to learn?

I spend time trying to learn specific items; then during my breaks I'll surf HN or Reddit and see a couple items I want to follow up. But a lot of times will forget until I come across it again.

I know of Evernote, just haven't used it much and not sure it will fit this instance.

Is there any situation where someone has grouped what they want to know by links/time spent look at subject?