Research-based, peer-reviewed interventions...
http://www.unl.edu/csi/study.shtml
Florida Center for Reading Research
http://www.fcrr.org/FCRRReports/reportslist.htm
http://www.interventioncentral.org/
National Center on Student Progress Monitoring
http://www.studentprogress.org/
Project Achieve
http://www.projectachieve.info/
Region10 link for Scientifically Based Research
http://www.region10.org/specialeducation/sbr.html
RTI Action Network
http://www.rtinetwork.org/Professional/Webinars/National-Forum-2008
http://www.jimwrightonline.com/php/rti/rti_wire.php
TEA Response to Intervention
http://www.tea.state.tx.us/curriculum/RtI/index.html
TEA Best Practices Clearinghouse
http://www.tea.state.tx.us/bestprac/
Vaughn Gross Center for Reading and Language Arts
http://www.texasreading.org/utcrla/