SOPA and PIPA are both horrid bills whose passage leads to the Internet being broken. To try and prevent their passage, Wikipedia (and many other organisations/businesses) have blacked-out their websites (or placed anti-SOPA banners) so as to raise awareness. Given the importance of stopping these bills, you should stop reading this tutorial and fill out one of the various petitions or contact your congress-critter.

Done that? Good, now here's how to bypass Wikipedia's blackout:

On Firefox: Open your options/preference menu (should be under edit or tools, depending on your operating system) and disable javascript. Congratulations, you've now bypassed the blackout. (Alternatively, you could install the add-on NoScript)

On Safari or IE: Open your options/preference/settings menu (should be under edit or tools, depending on your operating system/browser) Congratulations, you've now bypassed the blackout.

Note that you cannot edit pages, however you can still view them.