More Info

Main webpages on TWI:
California Department of Education (overview of TWI)
Center for Applied Linguistics
Center for Research on Education, Diversity and Excellence
Article on the development of TWI

Other Interesting Sites:
Two-way immersion tool kit (for parents, teachers, administrators)
Comparison of TWI with other immersion models
Teacher Training and curriculum

Good articles / sites (mainly found through searches on the sites listed above):
Meeting the challenges of No Child Left Behind In U.S. Immersion Education
Impact of Two-Way Immersion on Students' Attitudes Toward School and College
TWI Teachers Talk about their Professional Expreriences:
TWI - Features and Statistices (but from 2001)
Student Roles in TWI: Superordinate or Subordinate?
Equalizing the Status of Both Languages in a Dual Immersion School

The basics of TWI:
http://www.cal.org/twi/toolkit/PI/Basics_Eng.pdf (Same article in Spanish)

FAQ:
http://www.cal.org/twi/FAQ.htm
http://www.cde.ca.gov/sp/el/ip/faq.asp (in English and Spanish)

More in-depth info for parents:
http://www.cal.org/twi/toolkit/PI/P_QA/parent_a1.htm (Same in Spanish)

These questions are more for the teachers / "how it's really done":
http://www.cal.org/twi/toolkit/CI/QA/all_qs.htm

More interesting sites and articles are listed here (across the U.S.):
Good list of resources

Website on TWI in Other Schools throughout the United States:

TWI school in San Francisco
Windsor, CA Charter School website:
Robbinsdale, MN Spanish Immersion school's website:
Chicago School's website:
Buena Vista (SFUSD) School website:
Chico Unified School District website:
SFUSD Board of Education Decision, December 2006 article: