Just upvote your favorite URLs and go to your profile by clicking your username at the top right of HN. Then you'll see all the interesting news you upvoted by clicking "saved stories"

Cheers.

I just posted a service that could suffice. http://briarpat.ch/hot

Just create a chrome bookmarks folder called "HN" or something. And bookmark sites you like into that folder. If you choose to share this folder with the world, everyone else can benefit as well.

why does this need to be a service?