
http://www.latlong.net/lat-long-dms.html
http://andrew.hedges.name/experiments/convert_lat_long/
http://www.directionsmag.com/site/latlong-converter/
http://www.rcn.montana.edu/resources/converter.aspx
http://www.latlongconverter.com/
http://www.earthpoint.us/Convert.aspx
Thank you to Harvey Belkin for compiling these!