X-ISP
- X-ISP is a visual, X11/XForms based, user-friendly interface to pppd/chat (i.e. an X11 dial-up networking tool).
- http://xisp.hellug.gr/

gpppkill Home Page
- GTK+ PPP tool that kills a connection if a minimal amount of bytes are not received during certain time.
- http://www.pla.net.py/home/oliver/gpppkill/

PPPGun-Dialer
- PPPGun-Dialer is a Tcl/Tk script that can be used to etablish a PPP connection by dialing a remote terminal server. It is based on PPP-on/PPP-off scripts, but it is more flexible than those scripts, allowing a more intelligent dialog with the modem.
- http://www.naskita.com/linux/pppgun/pppgun.shtml

How to Hook-Up PPP
- Document covers configuration and use of PPP in Linux. Current with the 2.4.x kernel tree.
- http://axion.physics.ubc.ca/ppp-linux.html

Eznet
- Software that simplifies PPP setup for Linux.
- http://www.hwaci.com/sw/eznet/