Ion is a tiling (no overlapping windows) window manager that also has PWM-style tabbed frames which can contain multiple client windows.

ELinks is an advanced and well-established feature-rich text mode Web (HTTP, FTP, etc.) browser.

PWM is a lightweight x window manager that can have multiple client windows attached to a single frame, that can be switched between via tabbing. The author of PWM, Tuomo Valkonen, has ceased development on PWM and now works on PWM’s successor: Ion. Although PWM is now no longer being actively developed, PWM’s tabbed windowing feature has been extremely influential and many other window managers have copied it. External Links PWM FAQ