Edit in JSFiddle

var myApp = angular.module('myApp', []);

myApp.service('ajaxService', function ($rootScope) {
    this.getEntries = function () {
        var url = 'https://ajax.googleapis.com/ajax/services/feed/load?v=1.0&num=10&q=http://madroom-project.blogspot.com/feeds/posts/default&callback=?';

        $.ajax({
            url: url,
            dataType: 'json',
            success: function (response) {
                $rootScope.$broadcast('getEntriesCompleted', {
                    response: response
                });
            }
        });
    }
});

myApp.controller('ajaxCtrl', function ($scope, ajaxService) {
    $scope.entries = [];

    $scope.getEntries = function () {
        ajaxService.getEntries()
    }

    $scope.$on('getEntriesCompleted', function (event, params) {
        var entries = params.response.responseData.feed.entries;

        console.log(entries);
        $scope.$apply(function () {
            angular.copy(entries, $scope.entries);
        });
    });
});

<div ng-app="myApp">
    <div ng-controller="ajaxCtrl">
        <button ng-click="getEntries()">Get Entries</button>
        <div ng-repeat="entry in entries">
            <p>{{ $index + 1 }}: <a href="{{ entry.link }}" target="_blank">{{ entry.title }}</a>

            </p>
        </div>
    </div>
</div>

p {
    font-size: small;
}