gistfile1.js

this.allLinks = ko.observableArray();

this.lickedLinks = ko.computed(function() {
  return this.allLinks().filter(function(link) {
    return link.isLicked(); 
  });
}, this);

this.newLinks = ko.computed(function() {
  return this.allLinks().filter(function(link) {
    return !link.isLicked(); 
  });
}, this);