I'm the Grumpy Old Ape sometimes answering C++ questions on Stackoverflow.
Usually you will find me in the C++ Lounge of the Stack Overflow chat.
I occasionally retweet something on my Twitter account, and I'm known to even generate my own tweets once in a while.
Meta Stack Overflow
Q&A for meta-discussion of the Stack Exchange family of Q&A websites
Programmers
Q&A for professional programmers interested in conceptual questions about software development
Science Fiction & Fantasy
Q&A for science fiction and fantasy enthusiasts
German Language & Usage
Q&A for speakers of German wanting to discuss the finer points of the language and translation
Server Fault
Q&A for professional system and network administrators
Game Development
Q&A for professional and independent game developers
Academia
Q&A for academics and those enrolled in higher education
English Language & Usage
Q&A for linguists, etymologists, and serious English language enthusiasts
Android Enthusiasts
Q&A for enthusiasts and power users of the Android operating system
Ask Patents
Q&A for people interested in improving and participating in the patent system
Programming Puzzles & Code Golf
Q&A for programming puzzle enthusiasts and code golfers
Area 51
Stack Exchange Network staging zone, where users come together to build new Q&A sites