I’m putting this information here for the next time I might need it. MOST of these require you to have login/password and live accounts. So, if you want your social media saved after you’re gone, BE SURE TO GIVE SOMEONE THE PASSWORDS.
For Facebook:
Log in with username and password. Navigate to settings: General while logged in. At the bottom of the page you will see a link that says “Download my Facebook data.” It should walk you through the process of downloading FB into a Zip file. More info here: https://www.facebook.com/help/405183566203254
For Twitter:
Log in. Go to Settings. On the main settings page, click the “request my archive” button. That will start the file download process.
For the WordPress site:
You can export the whole shebang following these instructions: http://codex.wordpress.org/Tools_Export_Screen
Individual pages can be saved as PDFs using the Cleansave plugin. https://wordpress.org/plugins/cleansave/.
For Flickr:
This is a service that will allow for other people to download the flickr photos en masse:
Confessions of a Curator, Editor, Geek 