Welcome to the Explain XKCD wiki
The latest comic is number 1090
All the comics (so far) are here.
Please sign up for an account and contribute to the Explain XKCD wiki! We need explanations for comics, characters, themes, memes and everything in between. If it is referenced in an XKCD web comic, it should be in here.
If you need help with the wiki syntax, Mediawiki has a great wealth of information to help you the syntax right. In particular, their instructions on Navigation and Editing are strongly recommended (but do be aware that these links take you to their site; you'll have to come back here to participate. ;-)
Discussion about various parts of the wiki are going on at Explain XKCD:Community portal. Share your 2¢!
Don't be a jerk. There are a lot of comics that don't have set in stone explanations, feel free to put multiple interpretations in the wiki page for each comic.
If you want to talk about a specific comic, the Discussion page is perfect for that.
Please only submit material directly related to—and helping everyone better understand—xkcd... and of course only submit material that can legally be posted (and freely edited.) Off-topic or other inappropriate content is subject to removal or modification at admin discretion, and users posting such are at risk of being blocked.
If you have a message for an admin, feel free to leave a message on their personal discussion page.
The Admins are here.