(Please report broken links)

The GNU project for emacs and the gcc compiler.  http://www.gnu.org

The MinGW project for Windows development environment and C runtime libraries.  http://www.mingw.org

ActiveTcl for Tcl/Tk 8.5 http://www.activestate.com/tcl

Vector shoreline data from GSHHS: Global Self-consistant Hierarchical High-resolution Shorelines.  Copyright © 1996-2004 by P. Wessel and W. H. F. Smith.  ( This e-mail address is being protected from spambots. You need JavaScript enabled to view it ) (http://www.soest.hawaii.edu/pwessel)

The World Port Index database from the U.S. National Geospatial-Intelligence Agency.  http://www.nga.mil/portal/site/maritime

BLUEWATER icon (Globe-Sextant) © IconDrawer (Eugen Buzuk) http://www.icondrawer.com

WMO translation tables, W.Ebisuzaki et. al, National Center for Environmental Prediction, NOAA. (wgrib.c).

Waypoint+ file format, © Brent Hildebrand, http://www.tapr.org/~kh2z/Waypoint

GPX file format, http://www.topografix.com.

Tcl/Tk package creation via freeWrap: Copyright © 1998-2008 by Dennis R. LaBelle This e-mail address is being protected from spambots. You need JavaScript enabled to view it ) All Rights Reserved.  http://freewrap.sourceforge.net

GPSBabel for import and export of route files, and for GPS support.  Copyright © 2002-2008 Robert Lipe et al. and GPSBabel.org, http://www.gpsbabel.org.

The National Geophysical Data Center, NOAA, for the World Magnetic Model, WMM.COF, and associated software, http://www.ngdc.noaa.gov/geomag/WMM/soft.shtml.

INNO Setup installation software, Copyright © 1997-2008 Jordan Russell. http://www.innosetup.com.

Naval Research Laboratory Monterey Master Environmental Library for Grib decoder software.  (Unavailable as of January 2010.)

Stuart Cunningham for the BSB decoder library libbsb. http://libbsb.sourceforge.net.

Andy Hamilton, Steve Carton, Simon Garland, Chris Goggin, Bob Zhang, Yves Monbaron for helpful comments, bug reports, and debugging assistance.