1. Phillips Exeter Academy's Math Department Web site, with links to problem sets (Exeter uses only student-led discussion, group work, and designed problem sets to teach math grades 9 - 12):

http://www.exeter.edu/academics/72_6539.aspx 

2. Carl Wieman Science Education Initiative at the University of British Columbia. Research page with several studies related to peer discussion in science courses:

http://www.cwsei.ubc.ca/SEI_research/index.html 

3. Footage of a grade 9 English classroom that uses SPIDER Web Discussion method

http://www.authenticeducation.org/alexis/

4. Common Core ELA Standards: http://www.corestandards.org/ELA-Literacy. 

5. Junior Great Books, a resource recommended to me by an elementary teacher that says the books are very well suited to SPIDER Web Discussion for the elementary classroom.

http://www.greatbooks.org/programs-for-all-ages/junior.html 

6. AP Developments -- Changes in the AP courses for history, science, and languages which aim to place an emphasis on meaning-making and communication as opposed to the old days of content memorization. 

http://advancesinap.collegeboard.org/ 

7. IB Developments -- Recent changes in the IB at MYP level (and for the near future at DP level) which aim to place emphasis on skills over content.

http://www.ibo.org/announcements/mypthenextchapter.cfm