Mr. Wigsten's links for algebra2/trigonometry:

www.nysedregents.org/testing/mathre/regentmathb.html

This site contains old math B tests that have the same material as the new regents exams. They are a good source to study from.

www.nysed.gov/osa/mathre/algebra2trigonometrysampler.pdf

This is a great site. It has the sampler for the 2010 regents. Scroll down the site until you find the algebra2/trigonometry test. The answers are just below the sampler.

www.regentsprep.org/Regents/math/algtrig/math-algtrig.htm#3

This website has lessons you can do by topic. It is very helpful for studying for regents and all tests. Have fun!