[CentOS] Concerned 3 im clients were installed as dependencies.

Worried, ran yum -y update expecting to get the bind update but am concerned as to why the following instant messaging packages were installed as dependencies. All of the following are instant messaging related except cyrus-sasl.

Jul 30 17:00:49 Installed: cyrus-sasl-md5-2.1.22-4.i386 Jul 30 17:00:49 Installed: meanwhile-1.0.2-5.el5.i386 Jul 30 17:00:50 Installed: libsilc-1.0.2-2.fc6.i386 Jul 30 17:00:54 Installed: libpurple-2.5.5-3.el5.i386 Jul 30 17:00:58 Installed: libpurple-perl-2.5.5-3.el5.i386

Did anybody else notice the install of im clients on practically headless non-gui systems? Any explanation?