Photo tech

In the last two weeks I've discovered (or was told about) some programs quite useful for an outdoor technician (amateur photographer):

• gpscorrelate which adds GPS tags on exif fields correlating gps tracks and photgraph shooting time. Finally, I am able to geoposition my trekking pictures automagically!. Next step: some way to create google maps paths with POIs.
• hugin for image blending. The following image was obtained in Gredos composed from four pictures.