While originally designed for making wind vector measurements over the ocean, radar scatterometers are also effective for large-scale monitoring of the Earth's land and ice surfaces. The recently launched SeaWinds scatterometer is the next generation of Ku-band scatterometers and offers many advantages over previous scatterometers including a very wide swath and constant incidence angle measurements. The wide swath of SeaWinds enables much more frequent coverage of the Earth's surface than has previously been possible and enhances the potential of the data in land and ice applications. SeaWinds data has been particularly effective in polar ice applications and SeaWinds data is currently being used for operational sea-ice extent monitoring and large iceberg tracking. Additional applications include monitoring glacial and sea-ice melting and studying the firn structure in Greenland and Antarctica. New applications of SeaWinds are being developed, including high resolution wind retrieval. Several such applications are briefly considered.