[ledger123]

The easiest way to bookmark HN articles is to leave a comment.

[jacquesm]

That's not correct, the easiest way to bookmark is to upvote.

The articles then end under your 'saved' list (see your profile links) and you can find them again later.

These lists were limited in length until recently but it seems that that has now been fixed and you can go all the way back to when you joined HN.