Parahumans Online

Parahumans Online, abbreviated to PHO, is the "go-to" website about capes. The main website displays recent international news about parahumans, and it also includes a cape wiki, message boards with private message functionality, a chatroom, and other information on cape groups and events. Its URL was Parahumans.net.

Cultural impact
Parahumans Online is the premier cape site for gossip and serves as the site of record for parahuman names. If one is not careful a name carelessly chosen or mentioned in passing could be misinterpreted. Long clunky names are simplified for example "Genocide by Scythe" becomes Genoscythe‎. The community will also change or swap out different names until they meet standards.

It is unknown what other sites there are.

Message Boards
The message boards are the most seen section of Parahumans Online in Worm. The most in-depth look at the boards is seen later, which includes some of Greg Veder's posts, which includes sections of a Parahumans Online message boards thread.

Other characters seen or referred to using it are Taylor, Charlotte, Lisa, WagTheDog, Sveta, Weld, and Vista. Saint has also been shown to pore over messages from Parahumans Online through Dragon's information feeds.

Chatrooms
The Parahumans Online chatroom #116, 'The Holdout' is shown. On the refurbished site it was the meeting place of the Chatroom group.

Wiki
The glorious and noble art of online encyclopedias is followed in regards to capes. Pages are known to have warnings about dangerous parahumans, such as Hellhound and Oni Lee.

Weaver and the Chicago Wards vandalized Golem's wiki page, and other websites, in an effort to confuse the The Slaughterhouse Nine-Thousand about his power. Given the severity of the threat this is excusable.

Trivia

 * Wildbow hinted in the comments that Parahumans Online may have been a side project of Dragon.
 * Several of the usernames seen on the message boards are plays on usernames of posters from the site comments and elsewhere.
 * Capes could have a Parahuman account and a plainclothes sock puppet account from when they were on PHO in their civilian identity.