Online course offerings from Episcopal Seminaries
This site has some of the best material I have seen explaining what theological reflection is and how to do it.
If that link doesn't work, try http://www.youthministry.org.nz/ and look for Groundwork for Christian Faith.
From Saint John in the Wilderness in Minnesota. There are whole courses posted here in Word and PDF formats. Topics covered include scripture, theology, sacraments, spirituality, ethics.
Episcopal Diocese of Iowa e-Seminary
This is a site one church set up for its EfM classes. It’s a good starting point for a lot of other material.