Alaska's subscription to Mango Languages was discontinued on June 30, 2016, as a cost-saving measure. The resources listed here may help to fill the void. Many libraries provide language learning resources, so be sure to check with your library if your language isn't listed here or you'd just like more or different tools.
Check it out: the Library of Congress shares some translations of the Declaration of Independence.
Many other languages use different characters than English. Here are some resources for accessing them from Windows or Mac machines.