Grumbled  
   Java-based discussion forum / message board. Theme/Focus: complaints and whining about life. Registration Information: usernames optional (no username or password registration). Discussion Format: linear.
   http://www.grumbled.com/

Foamy Dog's Rant Forum  
   Discussion forums / message boards. Theme/Focus: Conservative Forum, ranting. Topic Selection: users can start new discussions, but topics are pre-determined. Author Names: chosen on the fly (no username accounts or passwords). Discussion Structure: l
   http://rantweb.proboards4.com

Unjust Incidents Publication  
   People who have experienced unjust situations and want to share their stories with the world.
   http://groups.aol.com/injusticesreveal

Teamsatan  
   Features BBS for venting and free e-mail service.
   http://www.teamsatan.com/

4ranters.com  
   A site to discuss and share opinions and rants, no matter how extreme the views, on whatever topic. Read articles, stories, and complaints.
   http://www.4ranters.com/

Biph's Opinionated Site of Tomfoolery  
   Random rantings of a man on various ads and topics.
   http://www.biph.com/

Workrant  
   Bulletin board to express job-related frustrations and aggravations.
   http://www.workrant.com/

SucksBBS.com  
   Forum to rant about what sucks such as government, politics, and major corporations.
   http://www.sucksbbs.com

Bitch Sessions  
   Gripe about anything you want. Grouped by general category.
   http://www.bitchsessions.net