OSPs provide many services apart from Internet Access, they also provide access to online forums, chat rooms, etc.

They don't really exist any more - ISP's just have portal sites or something.

BBSes were arguably a good example of an OnlineServiceProvider. Better were cross-BBS-internet access sites like CompuServe.

lib/main.php:944: Notice: PageInfo: Cannot find action page

lib/main.php:839: Notice: PageInfo: Unknown action