This Wednesday, some of your favorite websites and apps might not load as quickly — if they load at all.

Before you express outrage (or throw your device across the room in frustration), take note: The companies behind these web services are trying to send a message about net neutrality. They’re simulating a world in which broadband internet is no longer regulated as a public utility — in which internet service providers (such as Comcast, Charter or Verizon) would have free competitive reign to charge a premium for high-speed access to certain websites.

The Internet-Wide Day of Action to Save Net Neutrality is being led by a group of nonprofits dedicated to civil liberties, including Fight for the Future, Free Press and Demand Progress, but more than 80,000 organizations, websites and internet users are expected to participate. These organizations spearheaded a similar day of advocacy on Sept. 10, 2014, before the Obama-era FCC established rules to protect and promote the open internet in Spring 2015.

On April 27 of this year the Federal Communications Commission released a draft of its proposal to roll back the 2015 protections. At that time, more than 800 companies and venture firms, including Techstars, Y Combinator, Chartbeat, Etsy and Medium, signed an open letter addressed to FCC Chairman Ajit Pai.

“Rather than dismantling regulations that allow the startup ecosystem to thrive, we urge you to focus instead on policies that would promote a stronger Internet for everyone,” the letter read.

Related: The FCC Took the First Step to Dismantle Net Neutrality. Your Dreams of Success Are Now on Life Support.

On May 18, in a two-to-one decision, the FCC voted to open a public debate on net neutrality rules and whether those established in 2015 should be undone, publishing a new draft of its proposal the following week. The July 12 date for the Day of Action was announced on June 6. The public is free to comment on the FCC’s proposal, and the first deadline for comments is July 17.

Here’s what some participating groups are doing for the Day of Action in an attempt to raise awareness about net neutrality and push back against the FCC’s efforts to dismantle existing rules.

Entrepreneur will update this article as more companies launch their protest campaigns.

AT&T
On Tuesday, just one day before the scheduled Battle for the Net protest, AT&T Senior Executive Vice President of External and Legislative Affairs Bob Quinn released a statement titled, “Why We’re Joining the ‘Day of Action’ in Support of an Open Internet.”

This move surprised those who have watched AT&T and the FCC battle it out over net neutrality rules over the last couple of years. The telecoms conglomerate has made the distinction between its disagreement with the current rules and its support of a free and open internet, explaining that the two are not mutually exclusive.

“This may seem like an anomaly to many people who might question why AT&T is joining with those who have differing viewpoints on how to ensure an open and free internet,” Quinn’s statement reads. “But that’s exactly the point — we all agree that an open internet is critical for ensuring freedom of expression and a free flow of ideas and commerce in the United States and around the world.”

This week, AT&T plans to run pro-net neutrality ads in Washington, D.C., according to Recode.

In a statement to The Verge, a spokesperson from Fight for the Future called AT&T’s announcement of its participation “ridiculous.”

Reddit
Reddit got an early start on the action, hosting a series of AMAs about net neutrality, including one with U.S. Sen. Brian Schatz, who leads the Senate Tech, Telecom and Internet Subcommittee.

“Reddit is built on the premise of letting individuals decide what content they find interesting,” a July 10 post on the company’s blog reads. “We believe the same basic principle should apply to the internet as a whole.”

On this Day of Action, Reddit is encouraging its users site-wide to voice their support for the open internet. Reddit co-founder Alexis Ohanian will also deliver a special message on the platform.

In early 2015, Ohanian took to the phones in the fight for the net neutrality rules that were established later that year. On a day when Reddit users made 15,000 phone calls to the FCC and Congress in a span of three hours, he patched them through to the commission.

Pornhub
The adult entertainment website will prominently display a message on its website to show support and create awareness for the importance of net neutrality, according to a press release.

“Net neutrality is an essential driver of innovation for startups,” Pornhub VP Corey Price said in the release. “It has helped us and many others create leading-edge solutions that have huge benefits for consumers.”

In an interview with Motherboard, Price alluded to potential plans to incorporate loading symbols throughout the site to illustrate how a reversal of current net neutrality rules could mean slower online video speeds on select sites going forward.

Fight for the Future
The nonprofit leading the charge on this Day of Action has shared a variety of pop-ups, banners, plugins, social media avatars and other tools that website administrators can implement to raise awareness about the issue at hand and direct site visitors to comment on the FCC’s proposal. Many take the form of a “loading” symbol or a similar web roadblock.

The Internet Association
The Internet Association, which is a Washington, D.C.-based lobbying group that represents companies such as Facebook, Google and Twitter, has launched a GIF-filled website explaining net neutrality. It too directs visitors to comment on the FCC proposal.

Related: How Do You Pronounce GIF? It Depends on Where You Live.

Medium
Visitors to Medium.com will see an alert, followed by a blog post explaining the importance of net neutrality.

OkCupid
Users of the dating platform will receive an in-app message directing them to a landing page on the Battle for the Net site where they can send a letter to the FCC and Congress.

Vimeo
The video hosting service has created a neutrality explainer video and will distribute graphics optimized for every social media platform.

Plays.TV
The social video platform for gamers will display a site-wide alert GIF encouraging its users to send a letter to the FCC and Congress via battleforthenet.com.

Mozilla
When Firefox browser users open a new tab or window, they’ll see a bulletin directing them to comment on the FCC proposal. Mozilla has used this strategy in the past to direct users to advocacy pages related to online privacy, surveillance reform and more, according to Recode.

And more
Amazon, Google, Facebook, Twitter, Etsy, Netflix, Spotify will all reportedly be participating. Entrepreneur will update this post once their approaches to the protest are revealed.