In this video, Professor William Murray demonstrates advanced integration techniques for AP Calculus II/BC.
Educator.com

Several examples and tutorials dealing with integral calculus
Pauls Online Math Notes

A helpful scientific calculator that runs in your web browser window.
Holt Online Learning

Excellent site showing examples of algebra, trig, calculus, differential equations, and linear algebra.
Paul's Online Math Notes

A very complete table of common formulas for derivatives and integrals as well as procedures. It is a pdf file document.
Paul Online Math Notes

Integration Table for trigonometric forms
http://www.cobalt.chem.ucalgary.ca

Very extensive help sheet that contains everything from simple derivative/integration formulas, to quick explanations of advanced derivation and integration techniques.
Pauls Online Math Notes

Almost all of the Trigonometric Identities, including Reciprocal identities, Pythagorean identities, Quotient identities, CoFunction identities, EvenOdd identities, SumDifference formulas, Double and Halfangle formulas, and SumtoProduct and ProducttoSum formulas.
Table of Trigonometric Identities

Integral table for basic integrals
http://www.cobalt.chem.ucalgary.ca

111 of the most common rules of integration.
The Integral Table
