Like the regular Word Links games, certain letters appear often at the end of these "words". I think most annoying is the letter "A". You have ASIA, AUSTRALIA, AFRICA, AMERICA, ANGOLA, and so on. You can spend the whole game using only words that end and start with the letter "A" - no fun at all. The letter "Y" also comes up often at the end of word, although there are not that many geo-words that start with it. "K" is another letter that behaves like "Y". If my memory serves me right, "E" and "N" geo-words are hard to come by, too.
In the spirit of making the Geo Word Links game better, I've created the following list of words with some info about them. Most info comes from Wikipedia, others from an ancient (1982) Compton's Encyclopedia I rescued off the street some years ago, and some just whatever came to my head, including attempts at humor. Feel free to chime in with suggestions or correction of facts. Enjoy!