I already run a website using XYZ web hosting company. Can I run ProjectForum there?
It depends on the web hosting company. CourseForum and ProjectForum contain their own built-in web server; this stays running all the time and waits for incoming web connections. Your hosting company then would need to let you have a long-running program on their servers. Some will certainly allow you to do this. Others will have restrictions preventing this, either allowing only static pages, or only short-running programs (CGI scripts, Perl, PHP pages, etc.). So ultimately you’ll need to ask your web hosting provider if they can help you with this. If not, we offer our own hosting service; see CourseForum hosting or ProjectForum hosting.