Programming since 1978.
C#, .NET, Java, C++, C, SQL, JDBC, XML, HTML, Javascript, ASP, Perl, JSP, JNI, sed, awk, Lisp, XEmacs, Emacs, vi, COBOL, Assembler, compiler design, parsing theory, lexical analysis, finite automata, language design, LR(k) grammar, lex, yacc, database, digital fax, SCCS, RCS, CVS, Intel 8080, i80x86, MC68000, IBM 370, z390, digital logic, RTL, cryptography, encryption, AES, PKI, compression, FTP, SMTP, IPC, sockets, threads, network, client/server, Unix, POSIX, MS-DOS, Windows, Win32, MIDI, AI, graphics, 3D math, document storage, workflow, Unicode, EBCDIC, JCL, CICS, PL/I, BASIC, FORTRAN, to name a few.
Meta Stack Overflow
Q&A for meta-discussion of the Stack Exchange family of Q&A websites
English Language & Usage
Q&A for linguists, etymologists, and serious English language enthusiasts
Electrical Engineering
Q&A for electronics and electrical engineering professionals, students, and enthusiasts
Physics
Q&A for active researchers, academics and students of physics
Programmers
Q&A for professional programmers interested in conceptual questions about software development
Server Fault
Q&A for professional system and network administrators
Mathematics
Q&A for people studying math at any level and professionals in related fields
Area 51
Stack Exchange Network staging zone, where users come together to build new Q&A sites
