Grindr - Grindr is the largest social networking app around for gay, bi, trans, and queer people.
Community Questions for Confluence - Keep questions and answers in one place with an engaging, community-driven Q&A discussion forum, powered by Confluence
SCRUFF - Waoo, gay dating applications.
Stack Overflow for Teams - Everything you love about Stack Overflow in a private space.
Blued - Blued is a standout amongst the most prominent applications for gay singles in China.
Question2Answer - A Q&A site helps an online community to share knowledge.