Free global and regional geodata

It is always interesting to know important sites to collect free global and regional data set. The following is a collection of some of these data:

1. The Mapping Hacks website

http://www.mappinghacks.com/data/

2. STRM DTM

http://eros.usgs.gov/#/Find_Data/Products_and_Data_Available/SRTM_DTED

3. Global Land Cover Facility

http://glcf.umiacs.umd.edu/index.shtml

4. GeoEye
http://www.geoeye.com/

5. RADARSAT
http://www.asc-csa.gc.ca/eng/satellites/radarsat1/default.asp

6. EnviSat
http://envisat.esa.int/

7. CartoSat
http://isro.org/Cartosat/

8. IRS
http://www.isro.org/satellites/cartosat-1.aspx

9.SatImaging
http://www.satimagingcorp.com/gallery-irs.html

10. ALI and HYPERION
http://eros.usgs.gov/#/Find_Data/Products_and_Data_Available/ALI

11. SPOT
http://www.spotimage.fr

12. Spaceimaging
http://www.euspaceimaging.com/
http://www.spaceimagingme.com/

13. Africover
http://www.africover.org/

14. Africa dissemination service
http://igskmncnwb015.cr.usgs.gov/adds/parameterse.php

15. Geoscientific single images and Country databases supply method
http://www.geoscientific.net/landsat_databases.php

16. Landsat
https://zulu.ssc.nasa.gov/mrsid/

17. Dynamic atlas
http://www.dynamicplanet.com/Support/DP_Downloads.html

18. Aster and Landsat
http://terralook.cr.usgs.gov/

19. Aster
http://asterweb.jpl.nasa.gov/

20. European landscape map
http://www.alterra.wur.nl/UK/research/Specialisation+Geo-information/Projects/LANMAP2/

21. RESPOND tematic maps
http://www.respond-int.org/respondlive/)
http://edcsns17.cr.usgs.gov/EarthExplorer/
http://glcf.umiacs.umd.edu/index.shtml