Anonplus

Anonplus was a social networking service developed by Anonymous. It was announced on 16 July 2011, one day after Your Anon News was banned from Google+. Anonymous defined Anonplus as a "new social network where there is no fear...of censorship...of blackout...nor of holding back." Anonplus's goal was to create a decentralized and secure social network where the privacy of the users was valued.
Attack on Anonplus.
On 21 July 2011, Anonplus was hacked by a rival group of hackers, apparently based in Turkey. AnonPlus's main webpage was replaced with an image of a dog wearing a suit, mocking the more normal Anonymous logo, and messages in Turkish and English. Few days later, it was defaced again second time by the rival hacking group Syrian Electronic Army.
Current state.
The social networking site has since been abandoned. The website was updated 13 November 2011 with a press release which mentioned that the project had entered an invite-only beta phase. According to this document, the project entered this beta phase on 5 November 2011. The document also explained that it had become a goal of the project to target censorship. Since that point, the domain has expired and no mention has been made of the project on any social media outlets.