I've recently published the full source for this website. That link leads to a git repo containing all the text data (article content etc.) and graphics plus the various programs used.
The program source code contained in that repo is available under the MIT License unless otherwise indicated. Text on this website (articles, wiki pages, etc.) and original graphics are now licensed under the CC BY 4.0 license unless otherwise indicated.
(Note that most of the graphics aren't my original work - they're photos of cover art, screengrabs from film and TV, preview images sourced from the web, etc. .)
If you think you can use something then go for it. Just, y'know, please credit me when you do.