Instant messengers are not yet "part of the web", but are trending that way (my family uses Google Talk via the GMail page, for instance).
A huge portion of all Mail users use it exclusively via the web. That an archaic non-web protocol might bounce those messages from site to site is besides the point.
I don't want to get axod started on IRC.
Groupware is exclusively the province of the net now. Even in big companies, which have coalesced around Sharepoint.
Usenet was supplanted by blogs, blog comments, blog-search, and news aggregation sites.
A huge portion of all Mail users use it exclusively via the web. That an archaic non-web protocol might bounce those messages from site to site is besides the point.
I don't want to get axod started on IRC.
Groupware is exclusively the province of the net now. Even in big companies, which have coalesced around Sharepoint.
Usenet was supplanted by blogs, blog comments, blog-search, and news aggregation sites.