The Lodestone is pretty much a social network, and integration between social networks is a crucial area nowadays. I would add the ability to automatically foward a small excerpt of lodestone blog posts to one's facebook/twitter account, and also a twittered "like" button (like the one on youtube) for other people's posts.

Finally, the ability to automatically tweet/post on facebook one's achievements/history would be awesome.

After all this kind of activity is all free advertisement for the game