Recently we added an option to allow others to view your personal library at a custom RetroRead url. (/mylibrary/myusername).
Now for those who care to share, your personal library page (if you have one) now sports an RSS feed (you should see the feed icon in your browser’s url bar) which generates a feed for your books. If you have your own blog, you can add this feed to it, for example. (The url btw is, surprise!, /mylibrary/myusername/rss.xml).
Log in and go to your profile settings to enable publishing your library.