1. Sign up to use Googles newly released Feed API
2. Follow the instructions to include their javascript correctly
3. Create a ul called shared-posts in your sidebar
4. Sign up for Google reader
5. Share some posts
6. Note down the url of your shared articles feed
7. Add following javascript to your blog:

var Sitenote = {
  fromGoogle: function(result)  {
    var feed = new google.feeds.Feed("http://www.google.com/reader/public/atom/user/...");
    feed.load(function(result) {
      if (result.error) { return; }
      var container = document.getElementById("shared-posts");
      for (var i = 0; i < result.feed.entries.length; i++) {
        var entry = result.feed.entries[i];
        var li = document.createElement("li");
        var link = document.createElement('a');
        link.href = entry.link;
        link.title = entry.title; 
        link.appendChild(document.createTextNode(entry.title));
        li.appendChild(link);
        container.appendChild(li);
      }
    });
  }
};

google.load("feeds", "1");
google.setOnLoadCallback(Sitenote.fromGoogle);