The NASA WorldWind Javascript SDK (WebWW) includes the library and examples for creating geo-browser web applications and for embedding a 3D globe in HTML5 web pages.
The NASA WorldWind Java SDK (WWJ) is for building cross-platform 3D geospatial desktop applications in Java.
The NASA WorldWind Java SDK for Android (WWA) includes the library, examples and tutorials for building 3D virtual globe applications for phones and tablets.
The NASA WorldWind Server Kit (WWSK) is an open source Java project that assembles GeoServer for easy distribution and implementation.