The LightWave Assets / Plugins database maintains a list of free and commercial third-party plugins available for LightWave.
Bakes LW's native instances, replacing them with geometry
Creates a non-model panel for quickly changing object settings
The LightForge Render Network for LightWave3D
A web-based LScript to Python convertor
The OD Toolset is a combination of Layout and Modeler enhancements
jump forward / backward one layer using a hotkey
Layout toolset designed to make animating and rigging easier.
Shift the keyframes of selected items in Layout
An exporter for preparing and uploading models to Sketchfab's website