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1. http://www.sanandres.com/
This link provides images and travel information.
2.http://travel.state.gov/travel/cis_pa_tw/cis/cis_1090.html
This link is from the US Department of State. It provides travel information about Colombia.
3.http://www.sanandres.com/travel_maps.php
It shows the island in Google map.
4. http://www.tripadvisor.com/Hotels-g297482-San_Andres_Island-Hotels.html
Information about hotels in San Andres
5. http://groups.msn.com/BigJuicesSanAndresIsland/shoebox.msnw
This link provides feedback from people that visited the island. It is good for travel tips and to know the good local spots that sometimes are not known by a travel agent.
Two more links
http://ian.umces.edu/symbols/
This is a great source for symbols for Illustrator.
http://www.islatur.net/gallery1/main.php
Nice photos !