SpongeBuddy Mania is a SpongeBob SquarePants fansite founded on April 3, 2004 by ssj4gogita4, Spongey34, and spongedude after a merger of former fan sites SpongeBuddy and SpongeBob Mania, the latter created on June 6, 2003. Like Encyclopedia SpongeBobia, it contains episode transcripts and character biographies and also has a forum.
SBM's golden era lasted from 2004-2009, with the most registered members ever online in one day being recorded on April 1, 2006. Many of the old members left due to growing older and taking on additional responsibilities. From autumn 2010 through 2011 usage of the forums had a period of inactivity. By 2014, forum traffic rebounded considerably, but the bulk of members were now part of a newer, younger generation with little knowledge of the website's past and the lore associated with it. The most members online has increased since the golden era and peaked at 214 on July 15, 2016.
On December 9, 2009, an issue of the Beckett Price Guide magazine was released in honor of SpongeBob SquarePants' 10th anniversary. In it, there was a list entitled "Top 10 SpongeBob fan sites," a list dedicated to SpongeBob-related online communities for fans. Among the list was SpongeBuddy Mania.
SpongeBuddy Mania was also endorsed for several years by popular cartoon critic Pieguyrulz, giving the forums a boost in activity.