Today, some of the world’s biggest internet companies and activist groups are coming together to protest the FCC’s proposed rollback of net neutrality protections. Google, Twitter, and Reddit have weighed in, as have groups like Mozilla and the ACLU.

The complete tally of groups and people involved in the protest, organized by activist group Fight for the Future, is massive, so any list will necessarily be incomplete. But here is a look at several of the most noteworthy — messages of support from the biggest players, creative displays from smaller upstarts, and some odder entries in the internet’s net neutrality “day of action.”

Tim Berners-Lee

The founder of the web, already a prominent supporter of net neutrality, published a short video defending the FCC’s rules. “If we lost net neutrality, we lose the internet as we know it,” he said in the video.

Google

The company released a policy blog post in defense of net neutrality, saying, “We hope you’ll make your voice heard,” but the company didn’t release a prominent banner or any other far-reaching message.

Facebook

Mark Zuckerberg posted a note of support on his personal Facebook page. “Right now, the FCC has rules in place to make sure the internet continues to be an open platform for everyone,” he writes. “At Facebook, we strongly support those rules. We're also open to working with members of Congress and anyone else on laws to protect net neutrality.”

Sheryl Sandberg posted a similar message. “Keeping the internet open for everyone is crucial,” she writes. “Not only does it promote innovation, but it lets people access information that can change their lives and gives voice to those who might not otherwise be heard.”

The ACLU

The prominent civil rights group placed a banner on its homepage. “Trump’s FCC wants to kill net neutrality,” the message reads. “This would let the cable and phone companies slow down any site they don’t like or that won’t pay extra.” The banner directs to an FCC comment-submission form.

Reddit

In one of the most prominent messages, Reddit placed a pop-up message that slowly loads the text, “The internet's less fun when your favorite sites load slowly, isn't it?” The site’s usual homepage image is also animated so it appears to load slowly.

Amazon

The shopping giant placed an image of support on its homepage, although it’s not easy to spot at a glance.

Airbnb

The rental platform released a short message on its homepage directing visitors to contact Congress and “support a free and open internet.”

Twitter

The company released a policy blog post defending net neutrality principles. “Net Neutrality is foundational to competitive, free enterprise, entrepreneurial market entry — and reaching global customers,” the company wrote. “You don’t have to be a big shot to compete.” The company also promoted the #NetNeutrality hashtag.

Mozilla

Mozilla is a longtime, vocal supporter of net neutrality. The company got creative for the day’s protest, releasing a nine-hour, “soothing” video where narrators read pro-net neutrality comments to the FCC.

Netflix

The company released a homepage banner directing visitors to the Internet Association trade group. The message: “Protect Internet Freedom. Defend Net Neutrality.”

The Electronic Frontier Foundation

The activist group put up a fake “blocked” message from “Atcast” jokingly urging visitors to “upgrade to our Premium Internet Bundle.” Another pop-up then explains the gag.

OkCupid

The internet dating site released a message urging users to “stop the FCC from destroying net neutrality.”

Imgur

The image-sharing site put up a “save the internet” banner.

Vimeo

The web video company released a video message asking viewers to “join the fight for a free, open, weirdo internet.”

Twitch

The game-streaming company put up a homepage banner in protest.

Spotify

The music company put up a banner directing to the Internet Association.

Tumblr

The company, which has been notably quiet up until very recently, released a statement as part of the protest, directing readers to dearfcc.org. “The new head of the FCC wants to undo the net neutrality protections you fought so hard for,” Tumblr’s statement reads.

Dropbox

The digital storage company released a statement of support. “On this Day of Action, we want to state clearly where Dropbox stands: we strongly favor a free and open internet with fair rules that promote competition, choice, and innovation,” the statement reads.

FCC commissioner Mignon Clyburn

Commissioner Clyburn, a Democratic commissioner at the FCC and net neutrality supporter, released a statement approving of the protest. “Today I stand with those who believe that a free and open internet is a foundational principle of our democracy,” Clyburn writes. “Its benefits can be felt across our economy and around the globe.”

College Humor

The humor site put up a video called “Why Net Neutrality Matters (And What You Can Do To Help)” that explains the issue.

The Telecom Response

AT&T has said it is “joining” the protest, despite being against the FCC’s net neutrality rules, and itself being a major target of the protest. Verizon released a statement today saying it applauds “their passion” but asks Congress to take action instead. Comcast put up a similar message.

GoDaddy

The company’s CEO, Blake Irving, released a statement on the company’s homepage. “If you value the spirit of the Internet that’s driven so much prosperity and freedom around the world, please join forces with GoDaddy to get informed and take action today,” Irving writes.

Pornhub

The porn site asked homepage visitors to “join Pornhub in the fight to save net neutrality” because “slow porn sucks.”

Sonos

The company released a message on its site, saying, “Sonos experiences wouldn’t be possible without the net neutrality policies that exist today.”

Opera

The browser-maker said in a post that it will “join hands with web sites, online communities, and internet users, like yourself, to sound the alarm about the threat to net neutrality.”

The Internet Archive

The group put up a homepage pop-up message from Fight for the Future.

DuckDuckGo

The search engine placed a message on its homepage: “Net neutrality is under threat. Protect it today!”

BitTorrent

The torrent client also used Fight For The Future’s pop-up homepage message.

Expedia

A homepage image is directing visitors to the Internet Association.

Change.org

The petition site put together a “save net neutrality” petition, and is promoting it on its homepage.

Sen. Ron Wyden

The Oregon senator is a prominent pro-net neutrality political voice. On his site, he asks that visitors “Help Democrats stand up to Trump and protect #NetNeutrality, before July 17.”

Rosetta Stone

The language education company used Fight For The Future’s widget on its homepage, and also released a short video on Twitter.

Color of Change

The activist group placed the Fight for the Future banner on its homepage.

Rep. Keith Ellison

Minnesota Representative and DNC deputy chairman Keith Ellison tweeted a video of himself dancing in support of net neutrality. It’s a good dance.

Tom Perez

Democratic National Committee chairman Tom Perez encouraged people to call their Congress members and urge them to support net neutrality. “Democrats believe that an open internet is fundamental to free speech, innovation, and a competitive economy,” Perez said in a statement. “The internet needs to remain a level playing field where the reach of one’s voice is determined by quality of ideas and not a handful of CEOs.”

New York, San Francisco, Chicago mayors (plus more than 50 others)

The mayor of more than 50 cities, including New York mayor Bill de Blasio, San Francisco mayor Ed Lee, and Chicago mayor Rahm Emanuel, wrote a letter to FCC chairman Ajit Pai asking him to “maintain and enforce the 2015 Open Internet Order.” Removing net neutrality protections, they write, “poses a significant risk of stifling American innovation and harming local economies across the country.”

TripAdvisor

TripAdvisor has been tweeting about preserving net neutrality, though there doesn’t appear to be any changes to its homepage.

Creative Commons

The website for Creative Commons greets visitors with a big pop-up of a spinning wheel and a note that losing net neutrality leaves “the door open to creating ‘internet fast lanes’ that prioritize certain websites over others.”

The FCC

The agency and Chairman Pai have declined to comment.