I discovered Julia Alvarez this spring after happening on How
the Garcia Girls Lost Their Accents in Books a Million. I was so
impressed by the semi-autobiographical story of four sisters whose
family emigrated from the Dominican Republic to New York (which is
written with the freshest narrative style I have read in a long time)
that I immediately got the sequel. Anyone who is looking for something
wonderful and different will love Alvarez.
Interview with Frontera magazine
Madeleine L'Engle is one of my absolute favorite writers. I
discovered her in elementary school with her Time Trilogy, and later
read her adult novels, memoirs, and books on Christianity.
Bonastra: The Madeleine L'Engle WWW Resource
This page looks more comphrehensive than it actually is, but it is useful for it's compilation of L'Engle quotes and a list of her upcoming appearances. Bonastra also hosts an e-mail discussion group.
Davita's Harp, My Name Is Asher Lev and The Chosen are my favorite Potok titles. His principally Jewish characters seem farmiliar to anyone who has ever struggled with the concept of religion (even this Lutheran :-)
This is by far the best Chaim Potok reference on the web. It includes a comprehensive list of his published works, links to book review and his lecture schedule.