Click on these for nifty extras and helpful materials.
TI website for downloads http://www.education.ti.com
website for calculator downloads http://www.ticalc.org
Website for your book with practice material and live help 8-midnight. http://www.ilrn.com
Programs for all of you Casio users http://world.casio.com/edu/programs/
New link for ILRN http://academic.cengage.com/now