Stack Overflow - Community-based Q&A part of the Stack Exchange platform.
XAMPP - XAMPP is a free and open-source cross-platform web server that is primarily used when locally developing web applications.
The Answer Bank - The Answer Bank is the UK’s leading question-and-answer site.
Apache HTTP Server - Apache httpd has been the most popular web server on the Internet since April 1996
Blurtit - Blurtit is a Q&A website. You can ask a question or answer on any question.
Microsoft IIS - Internet Information Services is a web server for Microsoft Windows