Trillian is a proprietary multiprotocol instant messaging application.

Instantbird is a cross-platform instant messaging client based on Mozillas XULRunner and the open source library libpurple used in Pidgin.

Smuxi is a cross-platform IRC client for the GNOME desktop inspired by Irssi.

Postfity is a post scheduling tool for social networks.

AddThis is a social bookmarking service that can be integrated into a website with the use of a web widget.

Amplifr is the easiest way to post updates and share content across social media.

YoruFukurou is a native Twitter client for Mac OS X.

Over-Graph is a social media management platform.