There are many sources of good information about teaching tools, teaching skills on the Web. Here are a few that may prove useful:
Blue Web’n is an online library of outstanding Internet sites categorized by subject, grade level, and format (tools, references, lessons, hotlists, resources, tutorials, activities, projects). Blue Web’n does not attempt to catalog all educational sites. Sites are hand-picked and are, in our opinion, among the most useful for classroom or instructional use.
This page is part of the Theory Into Practice (TIP) database. It is a tool intended to make learning and instructional theory more accessible to educators. The database contains brief summaries of 50 major theories of learning and instruction. These theories can also be accessed by learning domains and concepts.
http://www.heacademy.ac.uk/default.htm
A UK based organization with a mission geared toward helping institutions, discipline groups and all staff to provide the best possible learning experience for their students.
MERLOT (Multi Media Educational Resource for Learning and Online Teaching) is a free and open resource designed primarily for faculty and students of higher education. Links to online learning materials are collected here along with annotations such as peer reviews and assignments.
http://www.teaching.berkeley.edu/teaching.html
This wide-ranging, practical page from UC-Berkeley’s Office of Educational Development has links to online publications and tips sheets relating to a variety of undergraduate teaching issues.