Here, you will find information and links about all sorts of languages and their literatures, including some of the bookstores I've found most helpful (and affordable). In the age of email and Google Translate, it doesn't make sense to order from many of the foreign language specialty bookstores, some of which double and even quadruple the actual prices of their merchandise. I've found this is especially so with books from eastern European countries.
Libraria ShtepiaeLibrit. An independent branch of the Indo-European language family, Albanian was one of the latest to have been written down.
Abril Books. In Glendale, CA. The top bookstore in the Armenian diaspora.
Apollo Bookstore. Essentially the Estonian Amazon.
Bóksala Stúdenta. The University of Iceland bookstore.
Whitaker's Words Latin-English Dictionary Program. This, the Latin lifesaver, will parse most Latin words you are likely to come upon in general studies. It can also be reversed to provide English-Latin. Many graduate students of Medieval Studies swear by it.
Patogupirkti Lithuanian Bookstore. The language spoken by the Lithuanian peasantry has been said to be closer to the ancestral Indo-European language than any other living tongue.
Norli. Top Internet Bookstore in Norway.
Merlin.pl. Massive internet department store, comparable to Amazon.