The contents of my website are all imported into WordPress now. 301 (“moved permanently”) redirects have been set up in Apache to route old links to the new locations.
I’ve also imported Facebook posts into WordPress, going back to 2009. Going forward, stuff I post here gets automatically copied to both Facebook and Google+. Also, if I slip up and post something directly to Facebook, WordPress should get a copy of it.
I’m using a self-hosted WordPress instance, not wordpress.com or someone else’s hosted WordPress. This means I should have everything I’ve posted through the years on a server I control. You might want to bookmark http://alfter.us/.