willscott

Activist adds fallback application-cache caching to your site, so that visitors who have accessed your site in the past are able to maintain access even when your server is unavailable. Full details at <a href="https://activistjs.com" rel="nofollow ugc">activistjs.com</a>

Activist

Activate your site with client-side caching to maintain access to users even when your server is unavailable.

sgerrand

The SOPA Blackout for WordPress plugin allows you to easily show your support on SOPA Blackout Day on your blog.
Check out the <a href="http://sopablackout.org" rel="nofollow ugc">SOPA Blackout website</a>.
Full list of features:
<ul>
<li>Inserts the SOPA Blackout JavaScript file to your blog on SOPA Blackout day.</li>
</ul>
That’s it.

Activist vs SOPA Blackout for WordPress